The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-2026_89757 advisory.

    * libexpat: denial of service via crafted XML input (CVE-2026-45186)

    * firefox: thunderbird: Privilege escalation in the Application Update component (CVE-2026-109704)

    * firefox: Use-after-free in the XML component (CVE-2026-109718)

    * firefox: Information disclosure in the PDF Viewer component (CVE-2026-109742)

    * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109715)

    * firefox: firefox: Sandbox escape via incorrect boundary conditions in Win32 widget (CVE-2026-109740)

    * firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-109706)

    * firefox: Use-after-free in the Crash Reporting component (CVE-2026-109713)

    * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109724)

    * firefox: Sandbox escape due to uninitialized memory in the DOM: Web Serial component (CVE-2026-109745)

    * firefox: Mitigation bypass in the File Handling component (CVE-2026-109782)

    * firefox: Information disclosure, privilege escalation in the Security: Process Sandboxing component     (CVE-2026-109709)

    * firefox: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in     the Networking component (CVE-2026-109705)

    * firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-109738)

    * firefox: Sandbox escape due to race condition in the Networking component (CVE-2026-109757)

    * firefox: Use-after-free in the Storage: Bucket File System component (CVE-2026-109741)

    * firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-109729)

    * firefox: Other issue in the DOM: File component (CVE-2026-109744)

    * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109716)

    * firefox: Race condition, use-after-free in the Graphics: CanvasWebGL component (CVE-2026-109719)

    * firefox: Incorrect boundary conditions in the Layout component (CVE-2026-109753)

    * firefox: Integer overflow in the Layout: Text and Fonts component (CVE-2026-109723)

    * firefox: Privilege escalation in the DOM: Navigation component (CVE-2026-109756)

    * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109733)

    * firefox: Mitigation bypass in the File Handling component (CVE-2026-109763)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Networking component     (CVE-2026-109708)

    * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-109717)

    * firefox: Use-after-free in the DOM: Workers component (CVE-2026-109752)

    * firefox: Sandbox escape due to use-after-free in the Networking component (CVE-2026-109707)

    * firefox: Mitigation bypass in the Networking: HTTP component (CVE-2026-109760)

    * firefox: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-109720)

    * firefox: Use-after-free in the SVG component (CVE-2026-109726)

    * firefox: Integer overflow in the Graphics component (CVE-2026-109730)

    * firefox: Use-after-free in the Audio/Video component (CVE-2026-109727)

    * firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109737)

    * firefox: Use-after-free in the DOM: Streams component (CVE-2026-109732)

    * firefox: Site isolation issue in the Networking component (CVE-2026-109759)

    * firefox: Incorrect boundary conditions in the SVG component (CVE-2026-109762)

    * firefox: Incorrect boundary conditions in the DOM: Editor component (CVE-2026-109754)

    * firefox: Information disclosure in the Networking component (CVE-2026-109751)

    * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109725)

    * firefox: Sandbox escape due to uninitialized memory in the Graphics component (CVE-2026-109712)

    * firefox: Use-after-free in the Graphics: Canvas2D component (CVE-2026-109711)

    * firefox: Frame poisoning in the Layout component (CVE-2026-109736)

    * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109722)

    * firefox: Use-after-free in the DOM: Animation component (CVE-2026-109728)

    * firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-109721)

    * firefox: Privilege escalation in the Panning and Zooming component (CVE-2026-109743)

    Bug Fix(es) and Enhancement(s):

    * Firefox ESR 153 rebase [rhel-9.8.z] (JIRA:Rocky Linux-175155)

Tenable has extracted the preceding description block directly from the CIQ security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4736-1 advisory.

    Update to Mozilla Thunderbird 153.5 (MFSA 2026-110, bsc#1284493):

    - CVE-2026-109704: Privilege escalation in the Application Update component.
    - CVE-2026-109705: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-     free in the       Networking component.
    - CVE-2026-109706: Use-after-free in the Storage: IndexedDB component.
    - CVE-2026-109707: Sandbox escape due to use-after-free in the Networking component.
    - CVE-2026-109708: Sandbox escape due to incorrect boundary conditions in the Networking component.
    - CVE-2026-109709: Information disclosure, privilege escalation in the Security: Process Sandboxing     component.
    - CVE-2026-109710: Use-after-free in the Graphics: Text component.
    - CVE-2026-109711: Use-after-free in the Graphics: Canvas2D component.
    - CVE-2026-109712: Sandbox escape due to uninitialized memory in the Graphics component.
    - CVE-2026-109713: Use-after-free in the Crash Reporting component.
    - CVE-2026-109715: Incorrect boundary conditions in the JavaScript Engine component.
    - CVE-2026-109716: Incorrect boundary conditions in the JavaScript Engine component.
    - CVE-2026-109717: Use-after-free in the DOM: Bindings (WebIDL) component.
    - CVE-2026-109718: Use-after-free in the XML component.
    - CVE-2026-109719: Race condition, use-after-free in the Graphics: CanvasWebGL component.
    - CVE-2026-109720: JIT miscompilation in the JavaScript: WebAssembly component.
    - CVE-2026-109721: Incorrect boundary conditions in the JavaScript Engine: JIT component.
    - CVE-2026-109722: JIT miscompilation in the JavaScript Engine: JIT component.
    - CVE-2026-109723: Integer overflow in the Layout: Text and Fonts component.
    - CVE-2026-109724: Use-after-free in the DOM: Core & HTML component.
    - CVE-2026-109725: Use-after-free in the DOM: Core & HTML component.
    - CVE-2026-109726: Use-after-free in the SVG component.
    - CVE-2026-109727: Use-after-free in the Audio/Video component.
    - CVE-2026-109728: Use-after-free in the DOM: Animation component.
    - CVE-2026-109729: Use-after-free in the JavaScript Engine: JIT component.
    - CVE-2026-109730: Integer overflow in the Graphics component.
    - CVE-2026-109731: Incorrect boundary conditions in the Graphics: Canvas2D component.
    - CVE-2026-109732: Use-after-free in the DOM: Streams component.
    - CVE-2026-109733: JIT miscompilation in the JavaScript Engine: JIT component.
    - CVE-2026-109734: Mitigation bypass in the DOM: Security component.
    - CVE-2026-109736: Frame poisoning in the Layout component.
    - CVE-2026-109737: Mitigation bypass in the Enterprise Policies component.
    - CVE-2026-109738: Use-after-free in the Audio/Video: Playback component.
    - CVE-2026-109740: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component.
    - CVE-2026-109741: Use-after-free in the Storage: Bucket File System component.
    - CVE-2026-109742: Information disclosure in the PDF Viewer component.
    - CVE-2026-109743: Privilege escalation in the Panning and Zooming component.
    - CVE-2026-109744: Other issue in the DOM: File component.
    - CVE-2026-109745: Sandbox escape due to uninitialized memory in the DOM: Web Serial component.
    - CVE-2026-109751: Information disclosure in the Networking component.
    - CVE-2026-109752: Use-after-free in the DOM: Workers component.
    - CVE-2026-109753: Incorrect boundary conditions in the Layout component.
    - CVE-2026-109754: Incorrect boundary conditions in the DOM: Editor component.
    - CVE-2026-109756: Privilege escalation in the DOM: Navigation component.
    - CVE-2026-109757: Sandbox escape due to race condition in the Networking component.
    - CVE-2026-109759: Site isolation issue in the Networking component.
    - CVE-2026-109760: Mitigation bypass in the Networking: HTTP component.
    - CVE-2026-109762: Incorrect boundary conditions in the SVG component.
    - CVE-2026-109763: Mitigation bypass in the File Handling component.
    - CVE-2026-109764: Mitigation bypass in the Enterprise Policies component.
    - CVE-2026-109765: Race condition, use-after-free in the Graphics: Text component.
    - CVE-2026-109766: Mitigation bypass in the Enterprise Policies component.
    - CVE-2026-109767: Information disclosure in the Networking component.
    - CVE-2026-109770: Spoofing issue in the DOM: Web Serial component.
    - CVE-2026-109775: Denial-of-service in the WebRTC component.
    - CVE-2026-109776: Race condition in the XPCOM component.
    - CVE-2026-109777: Information disclosure in the Storage: IndexedDB component.
    - CVE-2026-109778: Privilege escalation in the WebExtensions component.
    - CVE-2026-109781: Denial-of-service in the Printing: Output component.
    - CVE-2026-109782: Mitigation bypass in the File Handling component.
    - CVE-2026-109783: Mitigation bypass in the File Handling component.
    - CVE-2026-110249: Denial-of-service in the Exchange email component.

    libexpat updated:

    - CVE-2026-50219: libexpat: Use-after-free vulnerability due to lack of handler call depth tracking in     libexpat could lead to information disclosure, integrity loss, or denial of service (bsc#1275108).
    - CVE-2026-56131: libexpat: Use-after-free vulnerability due to a lack of handler call depth tracking for     XML_ResumeParser in libexpat could lead to denial of service (bsc#1275108).
    - CVE-2026-56132: libexpat: Heap buffer overflow in doProlog due to mishandled array reallocation in     libexpat could lead to denial of service or memory corruption (bsc#1275108).
    - CVE-2026-56403: libexpat: Integer overflow vulnerability in the storeAtts attribute parsing function in     libexpat could lead to memory corruption (bsc#1275108).
    - CVE-2026-56404: libexpat: Integer overflow vulnerability in the addBinding routine of libexpat could     lead to memory corruption and potential security risks (bsc#1275108).
    - CVE-2026-56405: libexpat: Integer overflow vulnerability in libexpat could lead to memory corruption or     denial of service (bsc#1275108).
    - CVE-2026-56406: libexpat: Integer overflow vulnerability in libexpat could lead to memory corruption or     denial of service (bsc#1275108).
    - CVE-2026-56407: libexpat: Integer overflow vulnerability in libexpat could lead to memory corruption or     denial of service (bsc#1275108).
    - CVE-2026-56408: libexpat: Integer overflow vulnerability in the copyString function in libexpat could     lead to memory corruption (bsc#1275108).
    - CVE-2026-56409: libexpat: Integer overflow vulnerability in libexpat could lead to memory corruption or     denial of service (bsc#1275108).
    - CVE-2026-56410: libexpat: Integer overflow vulnerability in the xmlwf utility of libexpat could lead to     denial of service (bsc#1275108).
    - CVE-2026-56411: libexpat: Integer overflow vulnerability in libexpat could lead to memory corruption or     denial of service (bsc#1275108).
    - CVE-2026-56412: libexpat: Use-after-free vulnerability due to a lack of handler call depth tracking in     libexpat could lead to denial of service or memory corruption (bsc#1275108).
    - CVE-2026-66046: libexpat: denial of service vulnerability caused by quadratic algorithmic complexity in     the storeAtts() function in xmlparse.c (bsc#1275736).
    - CVE-2026-72522: libexpat: Out-of-bounds read and resultant infinite loop in the Unicode processing     functions in libexpat allowed attackers to cause denial of service (bsc#1275605).
    - CVE-2026-76641: libexpat: Out-of-bounds read vulnerability caused by a struct size mismatch in libexpat     allowed attackers to trigger memory corruption or a crash (bsc#1275736).
    - CVE-2026-76956: libexpat: Insufficient entropy caused by misinterpretation of getentropy's return code     in libexpat allowed attackers to cause a denial of service via hash flooding attacks (bsc#1275736).
    - CVE-2026-76957: libexpat: Use-after-free vulnerability due to lack of handler call depth tracking with     custom encoding callbacks in libexpat could lead to memory corruption (bsc#1275736).
    - CVE-2026-93990: libexpat: Improper handling of lone high surrogates in UTF-16 encoded XML in libexpat     allowed attackers to pass unpaired surrogates or silently replace input characters (bsc#1282347).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:89757 advisory.

    * libexpat: denial of service via crafted XML input (CVE-2026-45186)
      * firefox: thunderbird: Privilege escalation in the Application Update component (CVE-2026-109704)
      * firefox: Use-after-free in the XML component (CVE-2026-109718)
      * firefox: Information disclosure in the PDF Viewer component (CVE-2026-109742)
      * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109715)
      * firefox: firefox: Sandbox escape via incorrect boundary conditions in Win32 widget (CVE-2026-109740)
      * firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-109706)
      * firefox: Use-after-free in the Crash Reporting component (CVE-2026-109713)
      * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109724)
      * firefox: Sandbox escape due to uninitialized memory in the DOM: Web Serial component (CVE-2026-109745)
      * firefox: Mitigation bypass in the File Handling component (CVE-2026-109782)
      * firefox: Information disclosure, privilege escalation in the Security: Process Sandboxing component     (CVE-2026-109709)
      * firefox: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in     the Networking component (CVE-2026-109705)
      * firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-109738)
      * firefox: Sandbox escape due to race condition in the Networking component (CVE-2026-109757)
      * firefox: Use-after-free in the Storage: Bucket File System component (CVE-2026-109741)
      * firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-109729)
      * firefox: Other issue in the DOM: File component (CVE-2026-109744)
      * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109716)
      * firefox: Race condition, use-after-free in the Graphics: CanvasWebGL component (CVE-2026-109719)
      * firefox: Incorrect boundary conditions in the Layout component (CVE-2026-109753)
      * firefox: Integer overflow in the Layout: Text and Fonts component (CVE-2026-109723)
      * firefox: Privilege escalation in the DOM: Navigation component (CVE-2026-109756)
      * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109733)
      * firefox: Mitigation bypass in the File Handling component (CVE-2026-109763)
      * firefox: Sandbox escape due to incorrect boundary conditions in the Networking component     (CVE-2026-109708)
      * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-109717)
      * firefox: Use-after-free in the DOM: Workers component (CVE-2026-109752)
      * firefox: Sandbox escape due to use-after-free in the Networking component (CVE-2026-109707)
      * firefox: Mitigation bypass in the Networking: HTTP component (CVE-2026-109760)
      * firefox: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-109720)
      * firefox: Use-after-free in the SVG component (CVE-2026-109726)
      * firefox: Integer overflow in the Graphics component (CVE-2026-109730)
      * firefox: Use-after-free in the Audio/Video component (CVE-2026-109727)
      * firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109737)
      * firefox: Use-after-free in the DOM: Streams component (CVE-2026-109732)
      * firefox: Site isolation issue in the Networking component (CVE-2026-109759)
      * firefox: Incorrect boundary conditions in the SVG component (CVE-2026-109762)
      * firefox: Incorrect boundary conditions in the DOM: Editor component (CVE-2026-109754)
      * firefox: Information disclosure in the Networking component (CVE-2026-109751)
      * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109725)
      * firefox: Sandbox escape due to uninitialized memory in the Graphics component (CVE-2026-109712)
      * firefox: Use-after-free in the Graphics: Canvas2D component (CVE-2026-109711)
      * firefox: Frame poisoning in the Layout component (CVE-2026-109736)
      * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109722)
      * firefox: Use-after-free in the DOM: Animation component (CVE-2026-109728)
      * firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-109721)
      * firefox: Privilege escalation in the Panning and Zooming component (CVE-2026-109743)


    Bug Fix(es) and Enhancement(s):

      * Firefox ESR 153 rebase [rhel-9.8.z] (JIRA:RHEL-175155)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-2026_93443 advisory.

    * libexpat: denial of service via crafted XML input (CVE-2026-45186)

    * firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109764)

    * firefox: Spoofing issue in the DOM: Web Serial component (CVE-2026-109770)

    * firefox: Mitigation bypass in the File Handling component (CVE-2026-109783)

    * firefox: thunderbird: Privilege escalation in the Application Update component (CVE-2026-109704)

    * firefox: Use-after-free in the XML component (CVE-2026-109718)

    * firefox: Information disclosure in the PDF Viewer component (CVE-2026-109742)

    * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109715)

    * firefox: firefox: Sandbox escape via incorrect boundary conditions in Win32 widget (CVE-2026-109740)

    * firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-109706)

    * firefox: Use-after-free in the Crash Reporting component (CVE-2026-109713)

    * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109724)

    * firefox: Sandbox escape due to uninitialized memory in the DOM: Web Serial component (CVE-2026-109745)

    * firefox: Mitigation bypass in the File Handling component (CVE-2026-109782)

    * firefox: Information disclosure, privilege escalation in the Security: Process Sandboxing component     (CVE-2026-109709)

    * firefox: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in     the Networking component (CVE-2026-109705)

    * firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-109738)

    * firefox: Sandbox escape due to race condition in the Networking component (CVE-2026-109757)

    * firefox: Use-after-free in the Storage: Bucket File System component (CVE-2026-109741)

    * firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-109729)

    * firefox: Other issue in the DOM: File component (CVE-2026-109744)

    * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109716)

    * firefox: Race condition, use-after-free in the Graphics: CanvasWebGL component (CVE-2026-109719)

    * firefox: Incorrect boundary conditions in the Layout component (CVE-2026-109753)

    * firefox: Integer overflow in the Layout: Text and Fonts component (CVE-2026-109723)

    * firefox: Privilege escalation in the DOM: Navigation component (CVE-2026-109756)

    * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109733)

    * firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-109734)

    * firefox: Mitigation bypass in the File Handling component (CVE-2026-109763)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Networking component     (CVE-2026-109708)

    * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-109717)

    * firefox: Use-after-free in the DOM: Workers component (CVE-2026-109752)

    * firefox: Race condition in the XPCOM component (CVE-2026-109776)

    * firefox: Sandbox escape due to use-after-free in the Networking component (CVE-2026-109707)

    * firefox: Mitigation bypass in the Networking: HTTP component (CVE-2026-109760)

    * firefox: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-109720)

    * firefox: Information disclosure in the Storage: IndexedDB component (CVE-2026-109777)

    * firefox: Use-after-free in the SVG component (CVE-2026-109726)

    * firefox: Integer overflow in the Graphics component (CVE-2026-109730)

    * firefox: Use-after-free in the Audio/Video component (CVE-2026-109727)

    * firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109737)

    * firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109766)

    * firefox: Use-after-free in the DOM: Streams component (CVE-2026-109732)

    * firefox: Site isolation issue in the Networking component (CVE-2026-109759)

    * firefox: Privilege escalation in the WebExtensions component (CVE-2026-109778)

    * firefox: Incorrect boundary conditions in the SVG component (CVE-2026-109762)

    * firefox: Race condition, use-after-free in the Graphics: Text component (CVE-2026-109765)

    * firefox: Incorrect boundary conditions in the DOM: Editor component (CVE-2026-109754)

    * firefox: Information disclosure in the Networking component (CVE-2026-109751)

    * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109725)

    * firefox: Sandbox escape due to uninitialized memory in the Graphics component (CVE-2026-109712)

    * firefox: Use-after-free in the Graphics: Canvas2D component (CVE-2026-109711)

    * firefox: Frame poisoning in the Layout component (CVE-2026-109736)

    * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109722)

    * firefox: Information disclosure in the Networking component (CVE-2026-109767)

    * firefox: Denial-of-service in the WebRTC component (CVE-2026-109775)

    * firefox: Use-after-free in the DOM: Animation component (CVE-2026-109728)

    * firefox: Denial-of-service in the Printing: Output component (CVE-2026-109781)

    * firefox: thunderbird: Use-after-free in the Graphics: Text component (CVE-2026-109710)

    * firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component     (CVE-2026-109731)

    * firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-109721)

    * firefox: Privilege escalation in the Panning and Zooming component (CVE-2026-109743)

    Bug Fix(es) and Enhancement(s):

    * Thunderbird ESR 153 rebase [rhel-9.8.z] (JIRA:Rocky Linux-175199)

Tenable has extracted the preceding description block directly from the CIQ security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Incorrect boundary conditions in the DOM: Editor component. This vulnerability was fixed in Firefox 158,     Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5. (CVE-2026-109754)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of Firefox installed on the remote Windows host is prior to 158.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-106 advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-fe87bcd73d advisory.

    Update to latest upstream version.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:95596 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * libexpat: denial of service via crafted XML input (CVE-2026-45186)

    * firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109764)

    * firefox: Spoofing issue in the DOM: Web Serial component (CVE-2026-109770)

    * firefox: Mitigation bypass in the File Handling component (CVE-2026-109783)

    * firefox: thunderbird: Privilege escalation in the Application Update component (CVE-2026-109704)

    * firefox: Use-after-free in the XML component (CVE-2026-109718)

    * firefox: Information disclosure in the PDF Viewer component (CVE-2026-109742)

    * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109715)

    * firefox: firefox: Sandbox escape via incorrect boundary conditions in Win32 widget (CVE-2026-109740)

    * firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-109706)

    * firefox: Use-after-free in the Crash Reporting component (CVE-2026-109713)

    * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109724)

    * firefox: Sandbox escape due to uninitialized memory in the DOM: Web Serial component (CVE-2026-109745)

    * firefox: Mitigation bypass in the File Handling component (CVE-2026-109782)

    * firefox: Information disclosure, privilege escalation in the Security: Process Sandboxing component     (CVE-2026-109709)

    * firefox: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in     the Networking component (CVE-2026-109705)

    * firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-109738)

    * firefox: Sandbox escape due to race condition in the Networking component (CVE-2026-109757)

    * firefox: Use-after-free in the Storage: Bucket File System component (CVE-2026-109741)

    * firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-109729)

    * firefox: Other issue in the DOM: File component (CVE-2026-109744)

    * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109716)

    * firefox: Race condition, use-after-free in the Graphics: CanvasWebGL component (CVE-2026-109719)

    * firefox: Incorrect boundary conditions in the Layout component (CVE-2026-109753)

    * firefox: Integer overflow in the Layout: Text and Fonts component (CVE-2026-109723)

    * firefox: Privilege escalation in the DOM: Navigation component (CVE-2026-109756)

    * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109733)

    * firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-109734)

    * firefox: Mitigation bypass in the File Handling component (CVE-2026-109763)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Networking component     (CVE-2026-109708)

    * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-109717)

    * firefox: Use-after-free in the DOM: Workers component (CVE-2026-109752)

    * firefox: Race condition in the XPCOM component (CVE-2026-109776)

    * firefox: Sandbox escape due to use-after-free in the Networking component (CVE-2026-109707)

    * firefox: Mitigation bypass in the Networking: HTTP component (CVE-2026-109760)

    * firefox: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-109720)

    * firefox: Information disclosure in the Storage: IndexedDB component (CVE-2026-109777)

    * firefox: Use-after-free in the SVG component (CVE-2026-109726)

    * firefox: Integer overflow in the Graphics component (CVE-2026-109730)

    * firefox: Use-after-free in the Audio/Video component (CVE-2026-109727)

    * firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109737)

    * firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109766)

    * firefox: Use-after-free in the DOM: Streams component (CVE-2026-109732)

    * firefox: Site isolation issue in the Networking component (CVE-2026-109759)

    * firefox: Privilege escalation in the WebExtensions component (CVE-2026-109778)

    * firefox: Incorrect boundary conditions in the SVG component (CVE-2026-109762)

    * firefox: Race condition, use-after-free in the Graphics: Text component (CVE-2026-109765)

    * firefox: Incorrect boundary conditions in the DOM: Editor component (CVE-2026-109754)

    * firefox: Information disclosure in the Networking component (CVE-2026-109751)

    * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109725)

    * firefox: Sandbox escape due to uninitialized memory in the Graphics component (CVE-2026-109712)

    * firefox: Use-after-free in the Graphics: Canvas2D component (CVE-2026-109711)

    * firefox: Frame poisoning in the Layout component (CVE-2026-109736)

    * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109722)

    * firefox: Information disclosure in the Networking component (CVE-2026-109767)

    * firefox: Denial-of-service in the WebRTC component (CVE-2026-109775)

    * firefox: Use-after-free in the DOM: Animation component (CVE-2026-109728)

    * firefox: Denial-of-service in the Printing: Output component (CVE-2026-109781)

    * firefox: thunderbird: Use-after-free in the Graphics: Text component (CVE-2026-109710)

    * firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component     (CVE-2026-109731)

    * firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-109721)

    * firefox: Privilege escalation in the Panning and Zooming component (CVE-2026-109743)

    Bug Fix(es) and Enhancement(s):

    * Thunderbird ESR 153 rebase [rhel-9.6.z] (JIRA:RHEL-175194)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 153.5. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-110 advisory.

  - Privilege escalation in the WebExtensions component. This vulnerability was fixed in Firefox 158 and     Firefox ESR 153.5. (CVE-2026-109778)

  - Sandbox escape due to use-after-free in the Networking component. This vulnerability was fixed in Firefox     158 and Firefox ESR 153.5. (CVE-2026-109707)

  - A malicious, compromised, or MITM-controlled Exchange server can return a single well-formed SOAP response     containing an element with enough attributes to keep Thunderbird's main thread CPU-bound for seconds to     hours. (CVE-2026-110249)

  - Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 158 and     Firefox ESR 153.5. (CVE-2026-109704)

  - Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the     Networking component. This vulnerability was fixed in Firefox 158 and Firefox ESR 153.5. (CVE-2026-109705)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-2196:29 advisory.

    * libexpat: denial of service via crafted XML input (CVE-2026-45186)
      * firefox: thunderbird: Privilege escalation in the Application Update component (CVE-2026-109704)
      * firefox: Use-after-free in the XML component (CVE-2026-109718)
      * firefox: Information disclosure in the PDF Viewer component (CVE-2026-109742)
      * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109715)
      * firefox: firefox: Sandbox escape via incorrect boundary conditions in Win32 widget (CVE-2026-109740)
      * firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-109706)
      * firefox: Use-after-free in the Crash Reporting component (CVE-2026-109713)
      * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109724)
      * firefox: Sandbox escape due to uninitialized memory in the DOM: Web Serial component (CVE-2026-109745)
      * firefox: Mitigation bypass in the File Handling component (CVE-2026-109782)
      * firefox: Information disclosure, privilege escalation in the Security: Process Sandboxing component     (CVE-2026-109709)
      * firefox: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in     the Networking component (CVE-2026-109705)
      * firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-109738)
      * firefox: Sandbox escape due to race condition in the Networking component (CVE-2026-109757)
      * firefox: Use-after-free in the Storage: Bucket File System component (CVE-2026-109741)
      * firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-109729)
      * firefox: Other issue in the DOM: File component (CVE-2026-109744)
      * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109716)
      * firefox: Race condition, use-after-free in the Graphics: CanvasWebGL component (CVE-2026-109719)
      * firefox: Incorrect boundary conditions in the Layout component (CVE-2026-109753)
      * firefox: Integer overflow in the Layout: Text and Fonts component (CVE-2026-109723)
      * firefox: Privilege escalation in the DOM: Navigation component (CVE-2026-109756)
      * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109733)
      * firefox: Mitigation bypass in the File Handling component (CVE-2026-109763)
      * firefox: Sandbox escape due to incorrect boundary conditions in the Networking component     (CVE-2026-109708)
      * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-109717)
      * firefox: Use-after-free in the DOM: Workers component (CVE-2026-109752)
      * firefox: Sandbox escape due to use-after-free in the Networking component (CVE-2026-109707)
      * firefox: Mitigation bypass in the Networking: HTTP component (CVE-2026-109760)
      * firefox: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-109720)
      * firefox: Use-after-free in the SVG component (CVE-2026-109726)
      * firefox: Integer overflow in the Graphics component (CVE-2026-109730)
      * firefox: Use-after-free in the Audio/Video component (CVE-2026-109727)
      * firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109737)
      * firefox: Use-after-free in the DOM: Streams component (CVE-2026-109732)
      * firefox: Site isolation issue in the Networking component (CVE-2026-109759)
      * firefox: Incorrect boundary conditions in the SVG component (CVE-2026-109762)
      * firefox: Incorrect boundary conditions in the DOM: Editor component (CVE-2026-109754)
      * firefox: Information disclosure in the Networking component (CVE-2026-109751)
      * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109725)
      * firefox: Sandbox escape due to uninitialized memory in the Graphics component (CVE-2026-109712)
      * firefox: Use-after-free in the Graphics: Canvas2D component (CVE-2026-109711)
      * firefox: Frame poisoning in the Layout component (CVE-2026-109736)
      * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109722)
      * firefox: Use-after-free in the DOM: Animation component (CVE-2026-109728)
      * firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-109721)
      * firefox: Privilege escalation in the Panning and Zooming component (CVE-2026-109743)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:89757 advisory.

    Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and     portability.

    Security Fix(es):

    * libexpat: denial of service via crafted XML input (CVE-2026-45186)

    * firefox: thunderbird: Privilege escalation in the Application Update component (CVE-2026-109704)

    * firefox: Use-after-free in the XML component (CVE-2026-109718)

    * firefox: Information disclosure in the PDF Viewer component (CVE-2026-109742)

    * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109715)

    * firefox: firefox: Sandbox escape via incorrect boundary conditions in Win32 widget (CVE-2026-109740)

    * firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-109706)

    * firefox: Use-after-free in the Crash Reporting component (CVE-2026-109713)

    * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109724)

    * firefox: Sandbox escape due to uninitialized memory in the DOM: Web Serial component (CVE-2026-109745)

    * firefox: Mitigation bypass in the File Handling component (CVE-2026-109782)

    * firefox: Information disclosure, privilege escalation in the Security: Process Sandboxing component     (CVE-2026-109709)

    * firefox: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in     the Networking component (CVE-2026-109705)

    * firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-109738)

    * firefox: Sandbox escape due to race condition in the Networking component (CVE-2026-109757)

    * firefox: Use-after-free in the Storage: Bucket File System component (CVE-2026-109741)

    * firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-109729)

    * firefox: Other issue in the DOM: File component (CVE-2026-109744)

    * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109716)

    * firefox: Race condition, use-after-free in the Graphics: CanvasWebGL component (CVE-2026-109719)

    * firefox: Incorrect boundary conditions in the Layout component (CVE-2026-109753)

    * firefox: Integer overflow in the Layout: Text and Fonts component (CVE-2026-109723)

    * firefox: Privilege escalation in the DOM: Navigation component (CVE-2026-109756)

    * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109733)

    * firefox: Mitigation bypass in the File Handling component (CVE-2026-109763)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Networking component     (CVE-2026-109708)

    * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-109717)

    * firefox: Use-after-free in the DOM: Workers component (CVE-2026-109752)

    * firefox: Sandbox escape due to use-after-free in the Networking component (CVE-2026-109707)

    * firefox: Mitigation bypass in the Networking: HTTP component (CVE-2026-109760)

    * firefox: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-109720)

    * firefox: Use-after-free in the SVG component (CVE-2026-109726)

    * firefox: Integer overflow in the Graphics component (CVE-2026-109730)

    * firefox: Use-after-free in the Audio/Video component (CVE-2026-109727)

    * firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109737)

    * firefox: Use-after-free in the DOM: Streams component (CVE-2026-109732)

    * firefox: Site isolation issue in the Networking component (CVE-2026-109759)

    * firefox: Incorrect boundary conditions in the SVG component (CVE-2026-109762)

    * firefox: Incorrect boundary conditions in the DOM: Editor component (CVE-2026-109754)

    * firefox: Information disclosure in the Networking component (CVE-2026-109751)

    * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109725)

    * firefox: Sandbox escape due to uninitialized memory in the Graphics component (CVE-2026-109712)

    * firefox: Use-after-free in the Graphics: Canvas2D component (CVE-2026-109711)

    * firefox: Frame poisoning in the Layout component (CVE-2026-109736)

    * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109722)

    * firefox: Use-after-free in the DOM: Animation component (CVE-2026-109728)

    * firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-109721)

    * firefox: Privilege escalation in the Panning and Zooming component (CVE-2026-109743)

    Bug Fix(es) and Enhancement(s):

    * Firefox ESR 153 rebase [rhel-9.8.z] (JIRA:RHEL-175155)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:89757 advisory.

    * libexpat: denial of service via crafted XML input (CVE-2026-45186)

    * firefox: thunderbird: Privilege escalation in the Application Update component (CVE-2026-109704)

    * firefox: Use-after-free in the XML component (CVE-2026-109718)

    * firefox: Information disclosure in the PDF Viewer component (CVE-2026-109742)

    * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109715)

    * firefox: firefox: Sandbox escape via incorrect boundary conditions in Win32 widget (CVE-2026-109740)

    * firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-109706)

    * firefox: Use-after-free in the Crash Reporting component (CVE-2026-109713)

    * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109724)

    * firefox: Sandbox escape due to uninitialized memory in the DOM: Web Serial component (CVE-2026-109745)

    * firefox: Mitigation bypass in the File Handling component (CVE-2026-109782)

    * firefox: Information disclosure, privilege escalation in the Security: Process Sandboxing component     (CVE-2026-109709)

    * firefox: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in     the Networking component (CVE-2026-109705)

    * firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-109738)

    * firefox: Sandbox escape due to race condition in the Networking component (CVE-2026-109757)

    * firefox: Use-after-free in the Storage: Bucket File System component (CVE-2026-109741)

    * firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-109729)

    * firefox: Other issue in the DOM: File component (CVE-2026-109744)

    * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109716)

    * firefox: Race condition, use-after-free in the Graphics: CanvasWebGL component (CVE-2026-109719)

    * firefox: Incorrect boundary conditions in the Layout component (CVE-2026-109753)

    * firefox: Integer overflow in the Layout: Text and Fonts component (CVE-2026-109723)

    * firefox: Privilege escalation in the DOM: Navigation component (CVE-2026-109756)

    * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109733)

    * firefox: Mitigation bypass in the File Handling component (CVE-2026-109763)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Networking component     (CVE-2026-109708)

    * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-109717)

    * firefox: Use-after-free in the DOM: Workers component (CVE-2026-109752)

    * firefox: Sandbox escape due to use-after-free in the Networking component (CVE-2026-109707)

    * firefox: Mitigation bypass in the Networking: HTTP component (CVE-2026-109760)

    * firefox: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-109720)

    * firefox: Use-after-free in the SVG component (CVE-2026-109726)

    * firefox: Integer overflow in the Graphics component (CVE-2026-109730)

    * firefox: Use-after-free in the Audio/Video component (CVE-2026-109727)

    * firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109737)

    * firefox: Use-after-free in the DOM: Streams component (CVE-2026-109732)

    * firefox: Site isolation issue in the Networking component (CVE-2026-109759)

    * firefox: Incorrect boundary conditions in the SVG component (CVE-2026-109762)

    * firefox: Incorrect boundary conditions in the DOM: Editor component (CVE-2026-109754)

    * firefox: Information disclosure in the Networking component (CVE-2026-109751)

    * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109725)

    * firefox: Sandbox escape due to uninitialized memory in the Graphics component (CVE-2026-109712)

    * firefox: Use-after-free in the Graphics: Canvas2D component (CVE-2026-109711)

    * firefox: Frame poisoning in the Layout component (CVE-2026-109736)

    * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109722)

    * firefox: Use-after-free in the DOM: Animation component (CVE-2026-109728)

    * firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-109721)

    * firefox: Privilege escalation in the Panning and Zooming component (CVE-2026-109743)

    Bug Fix(es) and Enhancement(s):

    * Firefox ESR 153 rebase [rhel-9.8.z] (JIRA:Rocky Linux-175155)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4806-1 advisory.

    Firefox Extended Support Release 153.5.0 ESR (MFSA 2026-108, bsc#1284493):

    - CVE-2026-109704: Privilege escalation in the Application Update component.
    - CVE-2026-109705: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-     free in the       Networking component.
    - CVE-2026-109706: Use-after-free in the Storage: IndexedDB component.
    - CVE-2026-109707: Sandbox escape due to use-after-free in the Networking component.
    - CVE-2026-109708: Sandbox escape due to incorrect boundary conditions in the Networking component.
    - CVE-2026-109709: Information disclosure, privilege escalation in the Security: Process Sandboxing     component.
    - CVE-2026-109710: Use-after-free in the Graphics: Text component.
    - CVE-2026-109711: Use-after-free in the Graphics: Canvas2D component.
    - CVE-2026-109712: Sandbox escape due to uninitialized memory in the Graphics component.
    - CVE-2026-109713: Use-after-free in the Crash Reporting component.
    - CVE-2026-109715: Incorrect boundary conditions in the JavaScript Engine component.
    - CVE-2026-109716: Incorrect boundary conditions in the JavaScript Engine component.
    - CVE-2026-109717: Use-after-free in the DOM: Bindings (WebIDL) component.
    - CVE-2026-109718: Use-after-free in the XML component.
    - CVE-2026-109719: Race condition, use-after-free in the Graphics: CanvasWebGL component.
    - CVE-2026-109720: JIT miscompilation in the JavaScript: WebAssembly component.
    - CVE-2026-109721: Incorrect boundary conditions in the JavaScript Engine: JIT component.
    - CVE-2026-109722: JIT miscompilation in the JavaScript Engine: JIT component.
    - CVE-2026-109723: Integer overflow in the Layout: Text and Fonts component.
    - CVE-2026-109724: Use-after-free in the DOM: Core & HTML component.
    - CVE-2026-109725: Use-after-free in the DOM: Core & HTML component.
    - CVE-2026-109726: Use-after-free in the SVG component.
    - CVE-2026-109727: Use-after-free in the Audio/Video component.
    - CVE-2026-109728: Use-after-free in the DOM: Animation component.
    - CVE-2026-109729: Use-after-free in the JavaScript Engine: JIT component.
    - CVE-2026-109730: Integer overflow in the Graphics component.
    - CVE-2026-109731: Incorrect boundary conditions in the Graphics: Canvas2D component.
    - CVE-2026-109732: Use-after-free in the DOM: Streams component.
    - CVE-2026-109733: JIT miscompilation in the JavaScript Engine: JIT component.
    - CVE-2026-109734: Mitigation bypass in the DOM: Security component.
    - CVE-2026-109736: Frame poisoning in the Layout component.
    - CVE-2026-109737: Mitigation bypass in the Enterprise Policies component.
    - CVE-2026-109738: Use-after-free in the Audio/Video: Playback component.
    - CVE-2026-109740: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component.
    - CVE-2026-109741: Use-after-free in the Storage: Bucket File System component.
    - CVE-2026-109742: Information disclosure in the PDF Viewer component.
    - CVE-2026-109743: Privilege escalation in the Panning and Zooming component.
    - CVE-2026-109744: Other issue in the DOM: File component.
    - CVE-2026-109745: Sandbox escape due to uninitialized memory in the DOM: Web Serial component.
    - CVE-2026-109751: Information disclosure in the Networking component.
    - CVE-2026-109752: Use-after-free in the DOM: Workers component.
    - CVE-2026-109753: Incorrect boundary conditions in the Layout component.
    - CVE-2026-109754: Incorrect boundary conditions in the DOM: Editor component.
    - CVE-2026-109756: Privilege escalation in the DOM: Navigation component.
    - CVE-2026-109757: Sandbox escape due to race condition in the Networking component.
    - CVE-2026-109759: Site isolation issue in the Networking component.
    - CVE-2026-109760: Mitigation bypass in the Networking: HTTP component.
    - CVE-2026-109762: Incorrect boundary conditions in the SVG component.
    - CVE-2026-109763: Mitigation bypass in the File Handling component.
    - CVE-2026-109764: Mitigation bypass in the Enterprise Policies component.
    - CVE-2026-109765: Race condition, use-after-free in the Graphics: Text component.
    - CVE-2026-109766: Mitigation bypass in the Enterprise Policies component.
    - CVE-2026-109767: Information disclosure in the Networking component.
    - CVE-2026-109770: Spoofing issue in the DOM: Web Serial component.
    - CVE-2026-109775: Denial-of-service in the WebRTC component.
    - CVE-2026-109776: Race condition in the XPCOM component.
    - CVE-2026-109777: Information disclosure in the Storage: IndexedDB component.
    - CVE-2026-109778: Privilege escalation in the WebExtensions component.
    - CVE-2026-109781: Denial-of-service in the Printing: Output component.
    - CVE-2026-109782: Mitigation bypass in the File Handling component.
    - CVE-2026-109783: Mitigation bypass in the File Handling component.

    libexpat updated:

    - CVE-2026-50219: libexpat: Use-after-free vulnerability due to lack of handler call depth tracking in     libexpat could lead to information disclosure, integrity loss, or denial of service (bsc#1275098).
    - CVE-2026-56131: libexpat: Use-after-free vulnerability due to a lack of handler call depth tracking for     XML_ResumeParser in libexpat could lead to denial of service (bsc#1275098).
    - CVE-2026-56132: libexpat: Heap buffer overflow in doProlog due to mishandled array reallocation in     libexpat could lead to denial of service or memory corruption (bsc#1275098).
    - CVE-2026-56403: libexpat: Integer overflow vulnerability in the storeAtts attribute parsing function in     libexpat could lead to memory corruption (bsc#1275098).
    - CVE-2026-56404: libexpat: Integer overflow vulnerability in the addBinding routine of libexpat could     lead to memory corruption and potential security risks (bsc#1275098).
    - CVE-2026-56405: libexpat: Integer overflow vulnerability in libexpat could lead to memory corruption or     denial of service (bsc#1275098).
    - CVE-2026-56406: libexpat: Integer overflow vulnerability in libexpat could lead to memory corruption or     denial of service (bsc#1275098).
    - CVE-2026-56407: libexpat: Integer overflow vulnerability in libexpat could lead to memory corruption or     denial of service (bsc#1275098).
    - CVE-2026-56408: libexpat: Integer overflow vulnerability in the copyString function in libexpat could     lead to memory corruption (bsc#1275098).
    - CVE-2026-56409: libexpat: Integer overflow vulnerability in libexpat could lead to memory corruption or     denial of service (bsc#1275098).
    - CVE-2026-56410: libexpat: Integer overflow vulnerability in the xmlwf utility of libexpat could lead to     denial of service (bsc#1275098).
    - CVE-2026-56411: libexpat: Integer overflow vulnerability in libexpat could lead to memory corruption or     denial of service (bsc#1275098).
    - CVE-2026-56412: libexpat: Use-after-free vulnerability due to a lack of handler call depth tracking in     libexpat could lead to denial of service or memory corruption (bsc#1275098).
    - CVE-2026-66046: libexpat: denial of service vulnerability caused by quadratic algorithmic complexity in     the storeAtts() function in xmlparse.c (bsc#1275736).
    - CVE-2026-72522: libexpat: Out-of-bounds read and resultant infinite loop in the Unicode processing     functions in libexpat allowed attackers to cause denial of service (bsc#1275605).
    - CVE-2026-76641: libexpat: Out-of-bounds read vulnerability caused by a struct size mismatch in libexpat     allowed attackers to trigger memory corruption or a crash (bsc#1275736).
    - CVE-2026-76956: libexpat: Insufficient entropy caused by misinterpretation of getentropy's return code     in libexpat allowed attackers to cause a denial of service via hash flooding attacks (bsc#1275736).
    - CVE-2026-76957: libexpat: Use-after-free vulnerability due to lack of handler call depth tracking with     custom encoding callbacks in libexpat could lead to memory corruption (bsc#1275736).
    - CVE-2026-93990: libexpat: Improper handling of lone high surrogates in UTF-16 encoded XML in libexpat     allowed attackers to pass unpaired surrogates or silently replace input characters (bsc#1282347).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-cce5679e8f advisory.

    Update to latest upstream version.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-f158b66a66 advisory.

    - Updated to latest upstream (158.0)

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:95597 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * libexpat: denial of service via crafted XML input (CVE-2026-45186)

    * firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109764)

    * firefox: Spoofing issue in the DOM: Web Serial component (CVE-2026-109770)

    * firefox: Mitigation bypass in the File Handling component (CVE-2026-109783)

    * firefox: thunderbird: Privilege escalation in the Application Update component (CVE-2026-109704)

    * firefox: Use-after-free in the XML component (CVE-2026-109718)

    * firefox: Information disclosure in the PDF Viewer component (CVE-2026-109742)

    * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109715)

    * firefox: firefox: Sandbox escape via incorrect boundary conditions in Win32 widget (CVE-2026-109740)

    * firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-109706)

    * firefox: Use-after-free in the Crash Reporting component (CVE-2026-109713)

    * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109724)

    * firefox: Sandbox escape due to uninitialized memory in the DOM: Web Serial component (CVE-2026-109745)

    * firefox: Mitigation bypass in the File Handling component (CVE-2026-109782)

    * firefox: Information disclosure, privilege escalation in the Security: Process Sandboxing component     (CVE-2026-109709)

    * firefox: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in     the Networking component (CVE-2026-109705)

    * firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-109738)

    * firefox: Sandbox escape due to race condition in the Networking component (CVE-2026-109757)

    * firefox: Use-after-free in the Storage: Bucket File System component (CVE-2026-109741)

    * firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-109729)

    * firefox: Other issue in the DOM: File component (CVE-2026-109744)

    * firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109716)

    * firefox: Race condition, use-after-free in the Graphics: CanvasWebGL component (CVE-2026-109719)

    * firefox: Incorrect boundary conditions in the Layout component (CVE-2026-109753)

    * firefox: Integer overflow in the Layout: Text and Fonts component (CVE-2026-109723)

    * firefox: Privilege escalation in the DOM: Navigation component (CVE-2026-109756)

    * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109733)

    * firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-109734)

    * firefox: Mitigation bypass in the File Handling component (CVE-2026-109763)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Networking component     (CVE-2026-109708)

    * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-109717)

    * firefox: Use-after-free in the DOM: Workers component (CVE-2026-109752)

    * firefox: Race condition in the XPCOM component (CVE-2026-109776)

    * firefox: Sandbox escape due to use-after-free in the Networking component (CVE-2026-109707)

    * firefox: Mitigation bypass in the Networking: HTTP component (CVE-2026-109760)

    * firefox: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-109720)

    * firefox: Information disclosure in the Storage: IndexedDB component (CVE-2026-109777)

    * firefox: Use-after-free in the SVG component (CVE-2026-109726)

    * firefox: Integer overflow in the Graphics component (CVE-2026-109730)

    * firefox: Use-after-free in the Audio/Video component (CVE-2026-109727)

    * firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109737)

    * firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109766)

    * firefox: Use-after-free in the DOM: Streams component (CVE-2026-109732)

    * firefox: Site isolation issue in the Networking component (CVE-2026-109759)

    * firefox: Privilege escalation in the WebExtensions component (CVE-2026-109778)

    * firefox: Incorrect boundary conditions in the SVG component (CVE-2026-109762)

    * firefox: Race condition, use-after-free in the Graphics: Text component (CVE-2026-109765)

    * firefox: Incorrect boundary conditions in the DOM: Editor component (CVE-2026-109754)

    * firefox: Information disclosure in the Networking component (CVE-2026-109751)

    * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109725)

    * firefox: Sandbox escape due to uninitialized memory in the Graphics component (CVE-2026-109712)

    * firefox: Use-after-free in the Graphics: Canvas2D component (CVE-2026-109711)

    * firefox: Frame poisoning in the Layout component (CVE-2026-109736)

    * firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109722)

    * firefox: Information disclosure in the Networking component (CVE-2026-109767)

    * firefox: Denial-of-service in the WebRTC component (CVE-2026-109775)

    * firefox: Use-after-free in the DOM: Animation component (CVE-2026-109728)

    * firefox: Denial-of-service in the Printing: Output component (CVE-2026-109781)

    * firefox: thunderbird: Use-after-free in the Graphics: Text component (CVE-2026-109710)

    * firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component     (CVE-2026-109731)

    * firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-109721)

    * firefox: Privilege escalation in the Panning and Zooming component (CVE-2026-109743)

    Bug Fix(es) and Enhancement(s):

    * Thunderbird ESR 153 rebase [rhel-9.4.z] (JIRA:RHEL-175192)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
374793	Rocky Linux 9 [CIQ] Security Update: firefox / firefox-debuginfo / firefox-debugsource / firefox-x11 Multiple Vulnerabilities (crlsa-2026_89757)	Nessus	Rocky Linux Local Security Checks	2026/11/1	2026/11/1	high
367746	SUSE SLED15: MozillaThunderbird / MozillaThunderbird-translations-common / etc (SUSE-SU-2026:4736-1)	Nessus	SuSE Local Security Checks	2026/10/20	2026/10/23	high
374828	AlmaLinux 9 : firefox (ALSA-2026:89757)	Nessus	Alma Linux Local Security Checks	2026/11/1	2026/11/1	high
375821	Rocky Linux 9 [CIQ] Security Update: thunderbird / thunderbird-debuginfo / thunderbird-debugsource Multiple Vulnerabilities (crlsa-2026_93443)	Nessus	Rocky Linux Local Security Checks	2026/11/4	2026/11/4	high
369437	Linux Distros Unpatched Vulnerability : CVE-2026-109754	Nessus	Misc.	2026/10/21	2026/11/5	high
365314	Mozilla Firefox < 158.0	Nessus	Windows	2026/10/13	2026/10/27	critical
367248	Fedora 44 : thunderbird (2026-fe87bcd73d)	Nessus	Fedora Local Security Checks	2026/10/19	2026/10/27	critical
376906	RHEL 9 : thunderbird (RHSA-2026:95596)	Nessus	Red Hat Local Security Checks	2026/11/6	2026/11/6	high
365351	Mozilla Thunderbird < 153.5	Nessus	MacOS X Local Security Checks	2026/10/13	2026/10/26	critical
373598	MiracleLinux 9 : firefox-153.5.0-1.el9_8.ML.1 (AXSA:2026-2196:29)	Nessus	Miracle Linux Local Security Checks	2026/10/29	2026/10/29	high
374441	RHEL 9 : firefox (RHSA-2026:89757)	Nessus	Red Hat Local Security Checks	2026/10/31	2026/10/31	high
374553	RockyLinux 9 : firefox (RLSA-2026:89757)	Nessus	Rocky Linux Local Security Checks	2026/10/31	2026/10/31	high
370375	SUSE SLES12: MozillaFirefox / MozillaFirefox-devel / etc (SUSE-SU-2026:4806-1)	Nessus	SuSE Local Security Checks	2026/10/22	2026/10/23	high
371729	Fedora 43 : thunderbird (2026-cce5679e8f)	Nessus	Fedora Local Security Checks	2026/10/24	2026/10/27	critical
371741	Fedora 43 : firefox (2026-f158b66a66)	Nessus	Fedora Local Security Checks	2026/10/24	2026/10/27	critical
376909	RHEL 9 : thunderbird (RHSA-2026:95597)	Nessus	Red Hat Local Security Checks	2026/11/6	2026/11/6	high

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