The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-913130e4f5 advisory.

    - Updated to latest upstream (157.0)

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 SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4543-1 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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4627-1 advisory.

    Update to Mozilla Thunderbird 153.4 (MFSA 2026-96, MFSA 2026-103, bsc#1280371, bsc#1282929):

    - CVE-2026-92005: Use-after-free in the Audio/Video: Web Codecs component.
    - CVE-2026-92006: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL     component.
    - CVE-2026-92007: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL     component.
    - CVE-2026-92008: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL     component.
    - CVE-2026-92009: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL     component.
    - CVE-2026-92010: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL     component.
    - CVE-2026-92011: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL     component.
    - CVE-2026-92012: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL     component.
    - CVE-2026-92013: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL     component.
    - CVE-2026-92015: Privilege escalation in the WebExtensions component.
    - CVE-2026-92016: Use-after-free in the Disability Access APIs component.
    - CVE-2026-92017: Privilege escalation in the DOM: Service Workers component.
    - CVE-2026-92018: Sandbox escape in the DOM: Core & HTML component.
    - CVE-2026-92019: Mitigation bypass in the Remote Settings Client component.
    - CVE-2026-92020: Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender     component.
    - CVE-2026-92022: Use-after-free in the DOM: HTML Parser component.
    - CVE-2026-92023: Use-after-free in the XML component.
    - CVE-2026-92024: Use-after-free in the SVG component.
    - CVE-2026-92025: Use-after-free in the DOM: Navigation component.
    - CVE-2026-92026: Use-after-free in the Networking component.
    - CVE-2026-92027: Use-after-free in the DOM: Streams component.
    - CVE-2026-92028: Use-after-free in the DOM: Core & HTML component.
    - CVE-2026-92029: Use-after-free in the SVG component.
    - CVE-2026-92030: Mitigation bypass in the DOM: Copy & Paste and Drag & Drop component.
    - CVE-2026-92031: Information disclosure in the Graphics: ImageLib component.
    - CVE-2026-92032: Sandbox escape due to invalid pointer in the Graphics component.
    - CVE-2026-92035: Sandbox escape due to incorrect boundary conditions in the Graphics component.
    - CVE-2026-92038: Mitigation bypass in the Remote Settings Client component.
    - CVE-2026-92039: Mitigation bypass in the DOM: Notifications component.
    - CVE-2026-92041: Mitigation bypass in the DOM: Networking component.
    - CVE-2026-92042: Race condition in the DOM: Content Processes component.
    - CVE-2026-92043: Privilege escalation due to incorrect boundary conditions in the Audio/Video component.
    - CVE-2026-92044: Information disclosure in the Networking: HTTP component.
    - CVE-2026-92045: Sandbox escape due to incorrect boundary conditions in the WebRTC component.
    - CVE-2026-92046: Use-after-free in the Graphics component.
    - CVE-2026-92047: Privilege escalation in the Crash Reporting component.
    - CVE-2026-92048: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component.
    - CVE-2026-92049: Use-after-free in the Widget: Win32 component.
    - CVE-2026-92052: Privilege escalation due to uninitialized memory in the Graphics: CanvasWebGL component.
    - CVE-2026-92053: Privilege escalation in the Graphics: CanvasWebGL component.
    - CVE-2026-92054: Privilege escalation in the Memory component.
    - CVE-2026-92055: Privilege escalation in the DevTools component.
    - CVE-2026-92056: Use-after-free in the Graphics: Text component.
    - CVE-2026-92057: Mitigation bypass in the Enterprise Policies component.
    - CVE-2026-92058: Use-after-free in the Graphics component.
    - CVE-2026-92059: Incorrect boundary conditions in the DOM: Editor component.
    - CVE-2026-92060: Use-after-free in the Internationalization component.
    - CVE-2026-92062: Privilege escalation in the Session Restore component.
    - CVE-2026-92064: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component.
    - CVE-2026-92065: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component.
    - CVE-2026-92067: Use-after-free in the Widget: Gtk component.
    - CVE-2026-92068: Site isolation issue in the Reader Mode component.
    - CVE-2026-92069: Spoofing issue in the DOM: Navigation component.
    - CVE-2026-92070: Information disclosure in the Networking component.
    - CVE-2026-92071: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component.
    - CVE-2026-92072: Incorrect boundary conditions in the Safe Browsing component.
    - CVE-2026-92073: Privilege escalation in the Enterprise Policies component.
    - CVE-2026-92074: Mitigation bypass in the Popup Blocker component.
    - CVE-2026-92075: Mitigation bypass in the Networking component.
    - CVE-2026-92076: Incorrect boundary conditions in the Networking component.
    - CVE-2026-92077: Denial-of-service in the SVG component.
    - CVE-2026-92078: Denial-of-service in the Security component.
    - CVE-2026-92079: Mitigation bypass in the Widget: Win32 component.
    - CVE-2026-92238: Ambiguous parsing of mail headers.
    - CVE-2026-92239: Buffer overrun in IMAP.
    - CVE-2026-92240: Out-of-bounds read in IMAP response parser.
    - 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.
    - CVE-2026-103500: Heap buffer overflow opening large email.

    Changes for MozillaThunderbird:

     * changed: RNP command-line utilities are no longer included      with Thunderbird (bmo#2068130)
     * changed: Thundermail built-in add-on updated to v2.0.16      (bmo#2071989)
     * fixed: Ctrl+Shift+K could fail to open the Quick Filter UI      (bmo#2062942)
     * fixed: Nested S/MIME signed parts could fail to render      (bmo#2062971)
     * fixed: Thunderbird could hang when waiting for IMAP server      greeting during account setup (bmo#2028760)
     * fixed: Gmail OAuth2 authentication could intermittently fail      on Windows (bmo#2063816)
     * fixed: `AppUpdatePin` policy did not prevent Thunderbird from      updating beyond pinned version (bmo#1910603)
     * fixed: 'What's New?' linked to Release channel notes instead      of ESR release notes (bmo#2073813)
     * fixed: Detached attachment links were truncated when folder      path contained `&` (bmo#2060451)
     * fixed: Save All, Detach All, and Delete All failed after      deleting one attachment (bmo#2057025)
     * fixed: Blank 1970-dated messages could appear from incomplete      message file copies (bmo#209501)
     * fixed: Forwarded messages could display incorrect encoding      (bmo#2059963)
     * fixed: Manual Get Messages failed after startup until      toggling offline mode (bmo#2057431)
     * fixed: Thunderbird could crash on shutdown while waiting for      OAuth2 password entry (bmo#1524247)

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 version of Thunderbird installed on the remote Windows host is prior to 157.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-101 advisory.

  - Use-after-free in the DOM: UI Events & Focus Handling component. This vulnerability was fixed in Firefox     ESR 153.4 and Firefox 157. (CVE-2026-100831)

  - 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)

  - 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.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-08d4e87b00 advisory.

    - Updated to latest upstream (157.0)

    ----

    - Update to latest upstream

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 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 version of Firefox installed on the remote Windows host is prior to 157.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-97 advisory.

  - Privilege escalation in the Places component. This vulnerability was fixed in Firefox ESR 153.4 and     Firefox 157. (CVE-2026-100824)

  - 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)

  - 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)

  - Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox ESR 153.4,     Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17. (CVE-2026-100758)

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-6533 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6533-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     September 30, 2026                    https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : firefox-esr     CVE ID         : CVE-2026-96869 CVE-2026-100756 CVE-2026-100757 CVE-2026-100758                      CVE-2026-100759 CVE-2026-100760 CVE-2026-100762 CVE-2026-100765                      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-2026-100787 CVE-2026-100788 CVE-2026-100789 CVE-2026-100790                      CVE-2026-100791 CVE-2026-100792 CVE-2026-100794 CVE-2026-100797                      CVE-2026-100798 CVE-2026-100800 CVE-2026-100801 CVE-2026-100803                      CVE-2026-100806 CVE-2026-100807 CVE-2026-100808 CVE-2026-100809                      CVE-2026-100811 CVE-2026-100812 CVE-2026-100814 CVE-2026-100815                      CVE-2026-100816 CVE-2026-100818 CVE-2026-100819 CVE-2026-100820                      CVE-2026-100821 CVE-2026-100822 CVE-2026-100824 CVE-2026-100825                      CVE-2026-100826 CVE-2026-100828 CVE-2026-100829 CVE-2026-100830                      CVE-2026-100831 CVE-2026-100832

    Multiple security issues have been found in the Mozilla Firefox web     browser, which could potentially result in the execution of arbitrary     code, sandbox escape, information disclosure or privilege escalation.

    Debian follows the extended support releases (ESR) of Firefox. Starting     with this update we're now following the 153.x releases.

    Between 140.x and 153.x, Firefox has seen a number of feature     updates. For more information please refer to     https://www.firefox.com/en-US/firefox/153.0esr/releasenotes/

    For the stable distribution (trixie), these problems have been fixed in     version 153.4.0esr-1~deb13u1.

    We recommend that you upgrade your firefox-esr packages.

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

    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 version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 157.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-101 advisory.

  - Use-after-free in the DOM: UI Events & Focus Handling component. This vulnerability was fixed in Firefox     ESR 153.4 and Firefox 157. (CVE-2026-100831)

  - 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)

  - 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.

The remote Fedora 45 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-06aa513df8 advisory.

    - Updated to latest upstream (157.0)

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
362841	Fedora 44 : firefox (2026-913130e4f5)	Nessus	Fedora Local Security Checks	2026/10/3	2026/10/3	critical
363771	SUSE SLES12: MozillaFirefox / MozillaFirefox-devel / etc (SUSE-SU-2026:4543-1)	Nessus	SuSE Local Security Checks	2026/10/7	2026/10/9	critical
365333	SUSE SLED15: MozillaThunderbird / MozillaThunderbird-translations-common / etc (SUSE-SU-2026:4627-1)	Nessus	SuSE Local Security Checks	2026/10/13	2026/10/19	medium
353286	Mozilla Thunderbird < 157.0	Nessus	Windows	2026/9/30	2026/10/19	medium
362814	Fedora 43 : firefox (2026-08d4e87b00)	Nessus	Fedora Local Security Checks	2026/10/3	2026/10/3	critical
363768	SUSE SLED15: MozillaFirefox / MozillaFirefox-devel / etc (SUSE-SU-2026:4545-1)	Nessus	SuSE Local Security Checks	2026/10/7	2026/10/9	critical
351119	Mozilla Firefox < 157.0	Nessus	Windows	2026/9/29	2026/10/5	critical
352262	Debian dsa-6533 : firefox-esr - security update	Nessus	Debian Local Security Checks	2026/9/30	2026/10/5	critical
353287	Mozilla Thunderbird < 157.0	Nessus	MacOS X Local Security Checks	2026/9/30	2026/10/19	medium
362715	Fedora 45 : firefox (2026-06aa513df8)	Nessus	Fedora Local Security Checks	2026/10/2	2026/10/2	critical

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