The version of mozilla-thunderbird installed on the remote host is prior to 140.17.0esr / 153.4.0esr. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2026-273-02 advisory.

    New mozilla-thunderbird packages are available for Slackware 15.0 and -current to fix security issues.

Tenable has extracted the preceding description block directly from the mozilla-thunderbird 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 Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4810 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4810-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/               Emilio Pozuelo Monfort     October 02, 2026                              https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : thunderbird     Version        : 1:140.17.0esr-1~deb12u1     CVE ID         : CVE-2026-92035 CVE-2026-96869 CVE-2026-100756 CVE-2026-100757                      CVE-2026-100758 CVE-2026-100759 CVE-2026-100762 CVE-2026-100766                      CVE-2026-100767 CVE-2026-100769 CVE-2026-100770 CVE-2026-100771                      CVE-2026-100772 CVE-2026-100773 CVE-2026-100774 CVE-2026-100775                      CVE-2026-100776 CVE-2026-100777 CVE-2026-100778 CVE-2026-100779                      CVE-2026-100780 CVE-2026-100781 CVE-2026-100782 CVE-2026-100783                      CVE-2026-100784 CVE-2026-100785 CVE-2026-100786 CVE-2026-100788                      CVE-2026-100789 CVE-2026-100790 CVE-2026-100791 CVE-2026-100792                      CVE-2026-100794 CVE-2026-100797 CVE-2026-100801 CVE-2026-100803                      CVE-2026-100807 CVE-2026-100811 CVE-2026-100818 CVE-2026-100819                      CVE-2026-100820 CVE-2026-100821 CVE-2026-100832 CVE-2026-103500

    Multiple security issues were discovered in Thunderbird, which could     result in the execution of arbitrary code.

    For Debian 12 bookworm, these problems have been fixed in version     1:140.17.0esr-1~deb12u1.

    We recommend that you upgrade your thunderbird packages.

    For the detailed security status of thunderbird please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/thunderbird

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian 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-2026:4545-1 advisory.

    Update to Firefox Extended Support Release 153.4.0 ESR (MFSA 2026-100, bsc#1282929):

    - CVE-2026-96869: Information disclosure in the Networking component.
    - CVE-2026-100756: Incorrect boundary conditions in the Audio/Video: Playback component.
    - CVE-2026-100757: Use-after-free in the Widget component.
    - CVE-2026-100758: Sandbox escape in the DOM: Navigation component.
    - CVE-2026-100759: Uninitialized memory in the Storage: Quota Manager component.
    - CVE-2026-100760: Sandbox escape in the Security: Process Sandboxing component.
    - CVE-2026-100762: Sandbox escape due to use-after-free in the DOM: Content Processes component.
    - CVE-2026-100765: Use-after-free in the JavaScript: WebAssembly component.
    - CVE-2026-100766: Information disclosure in the Networking: JAR component.
    - CVE-2026-100767: Use-after-free in the Networking: Cache component.
    - CVE-2026-100769: Use-after-free in the JavaScript: WebAssembly component.
    - CVE-2026-100770: Sandbox escape due to use-after-free in the DOM: Content Processes component.
    - CVE-2026-100771: Undefined behavior in the DOM: Streams component.
    - CVE-2026-100772: Use-after-free in the DOM: Core & HTML component.
    - CVE-2026-100773: Use-after-free in the Storage: IndexedDB component.
    - CVE-2026-100774: Use-after-free in the DOM: Core & HTML component.
    - CVE-2026-100775: Sandbox escape in the Graphics component.
    - CVE-2026-100776: Use-after-free in the JavaScript: WebAssembly component.
    - CVE-2026-100777: Use-after-free in the Graphics: Canvas2D component.
    - CVE-2026-100778: Sandbox escape due to use-after-free in the DOM: Core & HTML component.
    - CVE-2026-100779: Use-after-free in the XSLT component.
    - CVE-2026-100780: Use-after-free in the DOM: Core & HTML component.
    - CVE-2026-100781: Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender     component.
    - CVE-2026-100782: Privilege escalation due to incorrect boundary conditions in the Graphics component.
    - CVE-2026-100783: Uninitialized memory in the Audio/Video component.
    - CVE-2026-100784: Use-after-free in the Layout: Text and Fonts component.
    - CVE-2026-100785: Use-after-free in the DOM: Core & HTML component.
    - CVE-2026-100786: Sandbox escape due to use-after-free in the Graphics component.
    - CVE-2026-100787: Sandbox escape in the XUL component.
    - CVE-2026-100788: Invalid pointer in the JavaScript: WebAssembly component.
    - CVE-2026-100789: Use-after-free in the Graphics: Canvas2D component.
    - CVE-2026-100790: Use-after-free in the XSLT component.
    - CVE-2026-100791: Use-after-free in the DOM: Core & HTML component.
    - CVE-2026-100792: JIT miscompilation in the JavaScript: WebAssembly component.
    - CVE-2026-100794: Sandbox escape due to incorrect boundary conditions in the Internationalization     component.
    - CVE-2026-100797: Privilege escalation due to use-after-free in the Graphics: WebRender component.
    - CVE-2026-100798: Cryptography misuse in Storage: Quota Manager component.
    - CVE-2026-100800: Sandbox escape due to use-after-free in the Disability Access APIs component.
    - CVE-2026-100801: Privilege escalation in the DLL Services component.
    - CVE-2026-100803: Same-origin policy bypass in the WebExtensions component.
    - CVE-2026-100806: Uninitialized memory in the Graphics: WebGPU component.
    - CVE-2026-100807: Privilege escalation in the DOM: Service Workers component.
    - CVE-2026-100808: Mitigation bypass in the DOM: Service Workers component.
    - CVE-2026-100809: Same-origin policy bypass in the DevTools component.
    - CVE-2026-100811: Sandbox escape due to use-after-free in the DOM: Core & HTML component.
    - CVE-2026-100812: Denial-of-service in the Graphics component.
    - CVE-2026-100814: Incorrect boundary conditions in the JavaScript Engine: JIT component.
    - CVE-2026-100815: Use-after-free in the CSS Parsing and Computation component.
    - CVE-2026-100816: Site isolation issue in the DOM: Networking component.
    - CVE-2026-100818: Sandbox escape due to use-after-free in the Widget: Gtk component.
    - CVE-2026-100819: Sandbox escape due to incorrect boundary conditions in the XPCOM component.
    - CVE-2026-100820: Privilege escalation in the Address Bar component.
    - CVE-2026-100821: Site isolation issue in the Panning and Zooming component.
    - CVE-2026-100822: Spoofing issue in the Networking: HTTP component.
    - CVE-2026-100824: Privilege escalation in the Places component.
    - CVE-2026-100825: Use-after-free in the JavaScript Engine: JIT component.
    - CVE-2026-100826: Denial-of-service in the Storage: StorageManager component.
    - CVE-2026-100828: Mitigation bypass in the Bookmarks & History component.
    - CVE-2026-100829: Mitigation bypass in the DOM: Security component.
    - CVE-2026-100830: Mitigation bypass in the DOM: Navigation component.
    - CVE-2026-100831: Use-after-free in the DOM: UI Events & Focus Handling component.
    - CVE-2026-100832: Use-after-free in the Graphics: Canvas2D component.

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 Oracle Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2026-76764 advisory.

    [140.17.0-1.0.1]
    - Fix firefox-oracle-default-prefs.js for new nss [Orabug: 37079773]
    - Add firefox-oracle-default-prefs.js and remove the corresponding Red Hat file

    [140.17.0-1]
    - Update to 140.17.0 ESR

Tenable has extracted the preceding description block directly from the Oracle 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 MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-2049:27 advisory.

    * firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Graphics component     (CVE-2026-92035)
      * firefox: thunderbird: Use-after-free in the Graphics: Canvas2D component (CVE-2026-100832)
      * firefox: Use-after-free in the Layout: Text and Fonts component (CVE-2026-100784)
      * firefox: thunderbird: Privilege escalation in the DLL Services component (CVE-2026-100801)
      * firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Internationalization     component (CVE-2026-100794)
      * firefox: thunderbird: Privilege escalation in the Address Bar component (CVE-2026-100820)
      * firefox: thunderbird: Use-after-free in the Graphics: Canvas2D component (CVE-2026-100777)
      * firefox: thunderbird: Information disclosure in the Networking: JAR component (CVE-2026-100766)
      * firefox: thunderbird: Use-after-free in the XSLT component (CVE-2026-100779)
      * firefox: thunderbird: Privilege escalation in the DOM: Service Workers component (CVE-2026-100807)
      * firefox: thunderbird: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-100792)
      * firefox: Privilege escalation due to use-after-free in the Graphics: WebRender component     (CVE-2026-100797)
      * firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the XPCOM component     (CVE-2026-100819)
      * firefox: thunderbird: Use-after-free in the JavaScript: WebAssembly component (CVE-2026-100776)
      * firefox: thunderbird: Use-after-free in the Widget component (CVE-2026-100757)
      * firefox: Sandbox escape due to use-after-free in the Graphics component (CVE-2026-100786)
      * firefox: thunderbird: Information disclosure in the Networking component (CVE-2026-96869)
      * firefox: Sandbox escape due to use-after-free in the DOM: Content Processes component     (CVE-2026-100770)
      * firefox: thunderbird: Use-after-free in the JavaScript: WebAssembly component (CVE-2026-100769)
      * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-100791)
      * firefox: thunderbird: Sandbox escape due to use-after-free in the Widget: Gtk component     (CVE-2026-100818)
      * firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics     component (CVE-2026-100782)
      * firefox: firefox: Sandbox escape via use-after-free in DOM component (CVE-2026-100811)
      * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-100772)
      * firefox: thunderbird: Uninitialized memory in the Storage: Quota Manager component (CVE-2026-100759)
      * firefox: Sandbox escape due to use-after-free in the DOM: Core & HTML component (CVE-2026-100778)
      * firefox: thunderbird: Sandbox escape in the DOM: Navigation component (CVE-2026-100758)
      * firefox: thunderbird: Sandbox escape in the Graphics component (CVE-2026-100775)
      * firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender     component (CVE-2026-100781)
      * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-100774)
      * firefox: thunderbird: Same-origin policy bypass in the WebExtensions component (CVE-2026-100803)
      * firefox: thunderbird: Use-after-free in the Graphics: Canvas2D component (CVE-2026-100789)
      * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-100785)
      * firefox: thunderbird: Site isolation issue in the Panning and Zooming component (CVE-2026-100821)
      * firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-100788)
      * firefox: thunderbird: Undefined behavior in the DOM: Streams component (CVE-2026-100771)
      * firefox: Sandbox escape due to use-after-free in the DOM: Content Processes component     (CVE-2026-100762)
      * firefox: thunderbird: Use-after-free in the XSLT component (CVE-2026-100790)
      * firefox: thunderbird: Use-after-free in the Storage: IndexedDB component (CVE-2026-100773)
      * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-100780)
      * firefox: thunderbird: Use-after-free in the Networking: Cache component (CVE-2026-100767)
      * firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Playback component     (CVE-2026-100756)
      * firefox: thunderbird: Uninitialized memory in the Audio/Video component (CVE-2026-100783)

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 Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6536 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6536-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     October 01, 2026                      https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : thunderbird     CVE ID         : CVE-2026-92035 CVE-2026-96869 CVE-2026-100756 CVE-2026-100757                      CVE-2026-100758 CVE-2026-100759 CVE-2026-100762 CVE-2026-100766                      CVE-2026-100767 CVE-2026-100769 CVE-2026-100770 CVE-2026-100771                      CVE-2026-100772 CVE-2026-100773 CVE-2026-100774 CVE-2026-100775                      CVE-2026-100776 CVE-2026-100777 CVE-2026-100778 CVE-2026-100779                      CVE-2026-100780 CVE-2026-100781 CVE-2026-100782 CVE-2026-100783                      CVE-2026-100784 CVE-2026-100785 CVE-2026-100786 CVE-2026-100788                      CVE-2026-100789 CVE-2026-100790 CVE-2026-100791 CVE-2026-100792                      CVE-2026-100794 CVE-2026-100797 CVE-2026-100801 CVE-2026-100803                      CVE-2026-100807 CVE-2026-100811 CVE-2026-100818 CVE-2026-100819                      CVE-2026-100820 CVE-2026-100821 CVE-2026-100832 CVE-2026-103500

    Multiple security issues were discovered in Thunderbird, which could     result in the execution of arbitrary code.

    For the stable distribution (trixie), these problems have been fixed in     version 1:140.17.0esr-1~deb13u1.

    We recommend that you upgrade your thunderbird packages.

    For the detailed security status of thunderbird please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/thunderbird

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian 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 SLES16 / SLES_SAP16 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:23981-1 advisory.

    Update to Firefox Extended Support Release 153.4.0 ESR (MFSA 2026-100, bsc#1282929):

    - CVE-2026-96869: Information disclosure in the Networking component.
    - CVE-2026-100756: Incorrect boundary conditions in the Audio/Video: Playback component.
    - CVE-2026-100757: Use-after-free in the Widget component.
    - CVE-2026-100758: Sandbox escape in the DOM: Navigation component.
    - CVE-2026-100759: Uninitialized memory in the Storage: Quota Manager component.
    - CVE-2026-100760: Sandbox escape in the Security: Process Sandboxing component.
    - CVE-2026-100762: Sandbox escape due to use-after-free in the DOM: Content Processes component.
    - CVE-2026-100765: Use-after-free in the JavaScript: WebAssembly component.
    - CVE-2026-100766: Information disclosure in the Networking: JAR component.
    - CVE-2026-100767: Use-after-free in the Networking: Cache component.
    - CVE-2026-100769: Use-after-free in the JavaScript: WebAssembly component.
    - CVE-2026-100770: Sandbox escape due to use-after-free in the DOM: Content Processes component.
    - CVE-2026-100771: Undefined behavior in the DOM: Streams component.
    - CVE-2026-100772: Use-after-free in the DOM: Core & HTML component.
    - CVE-2026-100773: Use-after-free in the Storage: IndexedDB component.
    - CVE-2026-100774: Use-after-free in the DOM: Core & HTML component.
    - CVE-2026-100775: Sandbox escape in the Graphics component.
    - CVE-2026-100776: Use-after-free in the JavaScript: WebAssembly component.
    - CVE-2026-100777: Use-after-free in the Graphics: Canvas2D component.
    - CVE-2026-100778: Sandbox escape due to use-after-free in the DOM: Core & HTML component.
    - CVE-2026-100779: Use-after-free in the XSLT component.
    - CVE-2026-100780: Use-after-free in the DOM: Core & HTML component.
    - CVE-2026-100781: Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender     component.
    - CVE-2026-100782: Privilege escalation due to incorrect boundary conditions in the Graphics component.
    - CVE-2026-100783: Uninitialized memory in the Audio/Video component.
    - CVE-2026-100784: Use-after-free in the Layout: Text and Fonts component.
    - CVE-2026-100785: Use-after-free in the DOM: Core & HTML component.
    - CVE-2026-100786: Sandbox escape due to use-after-free in the Graphics component.
    - CVE-2026-100787: Sandbox escape in the XUL component.
    - CVE-2026-100788: Invalid pointer in the JavaScript: WebAssembly component.
    - CVE-2026-100789: Use-after-free in the Graphics: Canvas2D component.
    - CVE-2026-100790: Use-after-free in the XSLT component.
    - CVE-2026-100791: Use-after-free in the DOM: Core & HTML component.
    - CVE-2026-100792: JIT miscompilation in the JavaScript: WebAssembly component.
    - CVE-2026-100794: Sandbox escape due to incorrect boundary conditions in the Internationalization     component.
    - CVE-2026-100797: Privilege escalation due to use-after-free in the Graphics: WebRender component.
    - CVE-2026-100798: Cryptography misuse in Storage: Quota Manager component.
    - CVE-2026-100800: Sandbox escape due to use-after-free in the Disability Access APIs component.
    - CVE-2026-100801: Privilege escalation in the DLL Services component.
    - CVE-2026-100803: Same-origin policy bypass in the WebExtensions component.
    - CVE-2026-100806: Uninitialized memory in the Graphics: WebGPU component.
    - CVE-2026-100807: Privilege escalation in the DOM: Service Workers component.
    - CVE-2026-100808: Mitigation bypass in the DOM: Service Workers component.
    - CVE-2026-100809: Same-origin policy bypass in the DevTools component.
    - CVE-2026-100811: Sandbox escape due to use-after-free in the DOM: Core & HTML component.
    - CVE-2026-100812: Denial-of-service in the Graphics component.
    - CVE-2026-100814: Incorrect boundary conditions in the JavaScript Engine: JIT component.
    - CVE-2026-100815: Use-after-free in the CSS Parsing and Computation component.
    - CVE-2026-100816: Site isolation issue in the DOM: Networking component.
    - CVE-2026-100818: Sandbox escape due to use-after-free in the Widget: Gtk component.
    - CVE-2026-100819: Sandbox escape due to incorrect boundary conditions in the XPCOM component.
    - CVE-2026-100820: Privilege escalation in the Address Bar component.
    - CVE-2026-100821: Site isolation issue in the Panning and Zooming component.
    - CVE-2026-100822: Spoofing issue in the Networking: HTTP component.
    - CVE-2026-100824: Privilege escalation in the Places component.
    - CVE-2026-100825: Use-after-free in the JavaScript Engine: JIT component.
    - CVE-2026-100826: Denial-of-service in the Storage: StorageManager component.
    - CVE-2026-100828: Mitigation bypass in the Bookmarks & History component.
    - CVE-2026-100829: Mitigation bypass in the DOM: Security component.
    - CVE-2026-100830: Mitigation bypass in the DOM: Navigation component.
    - CVE-2026-100831: Use-after-free in the DOM: UI Events & Focus Handling component.
    - CVE-2026-100832: Use-after-free in the Graphics: Canvas2D component.

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 MiracleLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2026-2063:28 advisory.

    * firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Graphics component     (CVE-2026-92035)
      * firefox: thunderbird: Use-after-free in the Graphics: Canvas2D component (CVE-2026-100832)
      * firefox: Use-after-free in the Layout: Text and Fonts component (CVE-2026-100784)
      * firefox: thunderbird: Privilege escalation in the DLL Services component (CVE-2026-100801)
      * firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Internationalization     component (CVE-2026-100794)
      * firefox: thunderbird: Privilege escalation in the Address Bar component (CVE-2026-100820)
      * firefox: thunderbird: Use-after-free in the Graphics: Canvas2D component (CVE-2026-100777)
      * firefox: thunderbird: Information disclosure in the Networking: JAR component (CVE-2026-100766)
      * firefox: thunderbird: Use-after-free in the XSLT component (CVE-2026-100779)
      * firefox: thunderbird: Privilege escalation in the DOM: Service Workers component (CVE-2026-100807)
      * firefox: thunderbird: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-100792)
      * firefox: Privilege escalation due to use-after-free in the Graphics: WebRender component     (CVE-2026-100797)
      * firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the XPCOM component     (CVE-2026-100819)
      * firefox: thunderbird: Use-after-free in the JavaScript: WebAssembly component (CVE-2026-100776)
      * firefox: thunderbird: Use-after-free in the Widget component (CVE-2026-100757)
      * firefox: Sandbox escape due to use-after-free in the Graphics component (CVE-2026-100786)
      * firefox: thunderbird: Information disclosure in the Networking component (CVE-2026-96869)
      * firefox: Sandbox escape due to use-after-free in the DOM: Content Processes component     (CVE-2026-100770)
      * firefox: thunderbird: Use-after-free in the JavaScript: WebAssembly component (CVE-2026-100769)
      * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-100791)
      * firefox: thunderbird: Sandbox escape due to use-after-free in the Widget: Gtk component     (CVE-2026-100818)
      * firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics     component (CVE-2026-100782)
      * firefox: firefox: Sandbox escape via use-after-free in DOM component (CVE-2026-100811)
      * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-100772)
      * firefox: thunderbird: Uninitialized memory in the Storage: Quota Manager component (CVE-2026-100759)
      * firefox: Sandbox escape due to use-after-free in the DOM: Core & HTML component (CVE-2026-100778)
      * firefox: thunderbird: Sandbox escape in the DOM: Navigation component (CVE-2026-100758)
      * firefox: thunderbird: Sandbox escape in the Graphics component (CVE-2026-100775)
      * firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender     component (CVE-2026-100781)
      * firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-100774)
      * firefox: thunderbird: Same-origin policy bypass in the WebExtensions component (CVE-2026-100803)
      * firefox: thunderbird: Use-after-free in the Graphics: Canvas2D component (CVE-2026-100789)
      * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-100785)
      * firefox: thunderbird: Site isolation issue in the Panning and Zooming component (CVE-2026-100821)
      * firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-100788)
      * firefox: thunderbird: Undefined behavior in the DOM: Streams component (CVE-2026-100771)
      * firefox: Sandbox escape due to use-after-free in the DOM: Content Processes component     (CVE-2026-100762)
      * firefox: thunderbird: Use-after-free in the XSLT component (CVE-2026-100790)
      * firefox: thunderbird: Use-after-free in the Storage: IndexedDB component (CVE-2026-100773)
      * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-100780)
      * firefox: thunderbird: Use-after-free in the Networking: Cache component (CVE-2026-100767)
      * firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Playback component     (CVE-2026-100756)
      * firefox: thunderbird: Uninitialized memory in the Audio/Video component (CVE-2026-100783)

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 version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 153.4. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-103 advisory.

  - Sandbox escape due to incorrect boundary conditions in the XPCOM component. This vulnerability was fixed     in Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. (CVE-2026-100819)

  - Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox ESR 153.4,     Firefox ESR 115.42, and Firefox ESR 140.17. (CVE-2026-100832)

  - An attacker could cause a heap buffer overflow by getting a user to open an email that is greater than or     equal to 2GB in size. (CVE-2026-103500)

  - Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in     Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. (CVE-2026-100756)

  - Use-after-free in the Widget component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157,     Firefox ESR 115.42, and Firefox ESR 140.17. (CVE-2026-100757)

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
358451	Slackware Linux 15.0 / current mozilla-thunderbird Multiple Vulnerabilities (SSA:2026-273-02)	Nessus	Slackware Local Security Checks	2026/10/1	2026/10/19	medium
362458	Debian dla-4810 : thunderbird - security update	Nessus	Debian Local Security Checks	2026/10/1	2026/10/19	medium
363768	SUSE SLED15: MozillaFirefox / MozillaFirefox-devel / etc (SUSE-SU-2026:4545-1)	Nessus	SuSE Local Security Checks	2026/10/7	2026/10/9	critical
363860	Oracle Linux 10 : firefox (ELSA-2026-76764)	Nessus	Oracle Linux Local Security Checks	2026/10/7	2026/10/7	critical
366012	MiracleLinux 9 : firefox-140.17.0-1.el9_8.ML.1 (AXSA:2026-2049:27)	Nessus	Miracle Linux Local Security Checks	2026/10/15	2026/10/15	critical
362453	Debian dsa-6536 : thunderbird - security update	Nessus	Debian Local Security Checks	2026/10/1	2026/10/19	medium
363062	SUSE SLES16: MozillaFirefox / MozillaFirefox-devel / etc (SUSE-SU-2026:23981-1)	Nessus	SuSE Local Security Checks	2026/10/6	2026/10/9	critical
365293	Amazon Linux 2 : firefox (ALASFIREFOX-2026-066)	Nessus	Amazon Linux Local Security Checks	2026/10/12	2026/10/12	high
366378	MiracleLinux 8 : firefox-140.17.0-1.el8_10.ML.1 (AXSA:2026-2063:28)	Nessus	Miracle Linux Local Security Checks	2026/10/16	2026/10/16	critical
353285	Mozilla Thunderbird < 153.4	Nessus	MacOS X Local Security Checks	2026/9/30	2026/10/19	medium

检测

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