The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21980-1 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 Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4814 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4814-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/               Emilio Pozuelo Monfort     October 02, 2026                              https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : firefox-esr     Version        : 153.4.0esr-1~deb12u1     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 Debian 12 bookworm, these problems have been fixed in version     153.4.0esr-1~deb12u1.

    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 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 AlmaLinux 9.2 host has a package installed that is affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1793957749 advisory.

  - Mitigation bypass in the DOM: Push Subscriptions component. This vulnerability was fixed in Firefox 159,     Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6. (CVE-2026-117998)

  - Uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox ESR 153.4,     Thunderbird 157, Thunderbird 153.4, and Firefox 157. (CVE-2026-100806)

  - Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5 and     Thunderbird 153.5. (CVE-2026-109782, CVE-2026-109783)

  - Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox     159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6. (CVE-2026-117889,     CVE-2026-117946)

  - Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 159,     Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6. (CVE-2026-117996)

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

ID	名稱	產品	系列	已發布	已更新	嚴重性
362524	openSUSE 16: MozillaFirefox / MozillaFirefox-branding-upstream / etc (openSUSE-SU-2026:21980-1)	Nessus	SuSE Local Security Checks	2026/10/2	2026/10/2	critical
362656	Debian dla-4814 : firefox-esr - security update	Nessus	Debian Local Security Checks	2026/10/2	2026/10/9	critical
377004	AlmaLinux 9.2 [TuxCare] Security Update: thunderbird Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1793957749)	Nessus	Alma Linux Local Security Checks	2026/11/6	2026/11/12	critical

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