It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1470 advisory.

    Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability affects Firefox <     148, Firefox ESR < 115.33, and Firefox ESR < 140.8. (CVE-2026-2757)

    Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 148, Firefox ESR <     115.33, and Firefox ESR < 140.8. (CVE-2026-2758)

    Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability affects Firefox <     148, Firefox ESR < 115.33, and Firefox ESR < 140.8. (CVE-2026-2759)

    Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This     vulnerability affects Firefox < 148, Firefox ESR < 115.33, and Firefox ESR < 140.8. (CVE-2026-2760)

    Sandbox escape in the Graphics: WebRender component. This vulnerability affects Firefox < 148, Firefox ESR     < 115.33, and Firefox ESR < 140.8. (CVE-2026-2761)

    Integer overflow in the JavaScript: Standard Library component. This vulnerability affects Firefox < 148     and Firefox ESR < 140.8. (CVE-2026-2762)

    Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 148, Firefox ESR <     115.33, and Firefox ESR < 140.8. (CVE-2026-2763)

    JIT miscompilation, use-after-free in the JavaScript Engine: JIT component. This vulnerability affects     Firefox < 148, Firefox ESR < 115.33, and Firefox ESR < 140.8. (CVE-2026-2764)

    Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 148 and Firefox     ESR < 140.8. (CVE-2026-2765)

    Use-after-free in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 148 and     Firefox ESR < 140.8. (CVE-2026-2766)

    Use-after-free in the JavaScript: WebAssembly component. This vulnerability affects Firefox < 148 and     Firefox ESR < 140.8. (CVE-2026-2767)

    Sandbox escape in the Storage: IndexedDB component. This vulnerability affects Firefox < 148 and Firefox     ESR < 140.8. (CVE-2026-2768)

    Use-after-free in the Storage: IndexedDB component. This vulnerability affects Firefox < 148, Firefox ESR     < 115.33, and Firefox ESR < 140.8. (CVE-2026-2769)

    Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability affects Firefox < 148, Firefox     ESR < 115.33, and Firefox ESR < 140.8. (CVE-2026-2770)

    Undefined behavior in the DOM: Core & HTML component. This vulnerability affects Firefox < 148, Firefox     ESR < 115.33, and Firefox ESR < 140.8. (CVE-2026-2771)

    Use-after-free in the Audio/Video: Playback component. This vulnerability affects Firefox < 148, Firefox     ESR < 115.33, and Firefox ESR < 140.8. (CVE-2026-2772)

    Incorrect boundary conditions in the Web Audio component. This vulnerability affects Firefox < 148,     Firefox ESR < 115.33, and Firefox ESR < 140.8. (CVE-2026-2773)

    Integer overflow in the Audio/Video component. This vulnerability affects Firefox < 148, Firefox ESR <     115.33, and Firefox ESR < 140.8. (CVE-2026-2774)

    Mitigation bypass in the DOM: HTML Parser component. This vulnerability affects Firefox < 148, Firefox ESR     < 115.33, and Firefox ESR < 140.8. (CVE-2026-2775)

    Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This     vulnerability affects Firefox < 148, Firefox ESR < 115.33, and Firefox ESR < 140.8. (CVE-2026-2776)

    Privilege escalation in the Messaging System component. This vulnerability affects Firefox < 148, Firefox     ESR < 115.33, and Firefox ESR < 140.8. (CVE-2026-2777)

    Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability     affects Firefox < 148, Firefox ESR < 115.33, and Firefox ESR < 140.8. (CVE-2026-2778)

    Incorrect boundary conditions in the Networking: JAR component. This vulnerability affects Firefox < 148     and Firefox ESR < 140.8. (CVE-2026-2779)

    Privilege escalation in the Netmonitor component. This vulnerability affects Firefox < 148 and Firefox ESR     < 140.8. (CVE-2026-2780)

    Integer overflow in the Libraries component in NSS. This vulnerability affects Firefox < 148 and Firefox     ESR < 140.8. (CVE-2026-2781)

    Privilege escalation in the Netmonitor component. This vulnerability affects Firefox < 148 and Firefox ESR     < 140.8. (CVE-2026-2782)

    Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component. This     vulnerability affects Firefox < 148 and Firefox ESR < 140.8. (CVE-2026-2783)

    Mitigation bypass in the DOM: Security component. This vulnerability affects Firefox < 148 and Firefox ESR     < 140.8. (CVE-2026-2784)

    Invalid pointer in the JavaScript Engine component. This vulnerability affects Firefox < 148 and Firefox     ESR < 140.8. (CVE-2026-2785)

    Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 148 and Firefox     ESR < 140.8. (CVE-2026-2786)

    Use-after-free in the DOM: Window and Location component. This vulnerability affects Firefox < 148,     Firefox ESR < 115.33, and Firefox ESR < 140.8. (CVE-2026-2787)

    Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability affects Firefox < 148,     Firefox ESR < 115.33, and Firefox ESR < 140.8. (CVE-2026-2788)

    Use-after-free in the Graphics: ImageLib component. This vulnerability affects Firefox < 148, Firefox ESR     < 115.33, and Firefox ESR < 140.8. (CVE-2026-2789)

    Same-origin policy bypass in the Networking: JAR component. This vulnerability affects Firefox < 148 and     Firefox ESR < 140.8. (CVE-2026-2790)

    Mitigation bypass in the Networking: Cache component. This vulnerability affects Firefox < 148 and Firefox     ESR < 140.8. (CVE-2026-2791)

    Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147.
    Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of     these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 148 and     Firefox ESR < 140.8. (CVE-2026-2792)

    Memory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147     and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with     enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects     Firefox < 148, Firefox ESR < 115.33, and Firefox ESR < 140.8. (CVE-2026-2793)

Tenable has extracted the preceding description block directly from the tested product 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 ESR installed on the remote Windows host is prior to 140.8. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-15 advisory.

  - Memory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147     and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with     enough effort some of these could have been exploited to run arbitrary code. (CVE-2026-2793)

  - Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability     affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird <     140.8. (CVE-2026-2778)

  - Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability affects Firefox <     148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
    (CVE-2026-2757)

  - Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 148, Firefox ESR <     115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8. (CVE-2026-2758)

  - Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability affects Firefox <     148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
    (CVE-2026-2759)

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 ESR installed on the remote macOS or Mac OS X host is prior to 140.8. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-15 advisory.

  - Memory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147     and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with     enough effort some of these could have been exploited to run arbitrary code. (CVE-2026-2793)

  - Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability     affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird <     140.8. (CVE-2026-2778)

  - Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability affects Firefox <     148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
    (CVE-2026-2757)

  - Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 148, Firefox ESR <     115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8. (CVE-2026-2758)

  - Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability affects Firefox <     148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.
    (CVE-2026-2759)

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-2026:3339 advisory.

    * libvpx: Heap buffer overflow in libvpx (CVE-2026-2447)
      * firefox: Invalid pointer in the JavaScript Engine component (CVE-2026-2785)
      * firefox: Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8,     Firefox 148 and Thunderbird 148 (CVE-2026-2793)
      * firefox: Undefined behavior in the DOM: Core & HTML component (CVE-2026-2771)
      * firefox: Integer overflow in the Audio/Video component (CVE-2026-2774)
      * firefox: Sandbox escape due to incorrect boundary conditions in the Telemetry component in External     Software (CVE-2026-2776)
      * firefox: Integer overflow in the Libraries component in NSS (CVE-2026-2781)
      * firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-2766)
      * firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-2769)
      * firefox: Use-after-free in the DOM: Window and Location component (CVE-2026-2787)
      * firefox: Sandbox escape in the Storage: IndexedDB component (CVE-2026-2768)
      * firefox: Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component     (CVE-2026-2783)
      * firefox: Incorrect boundary conditions in the Audio/Video: GMP component (CVE-2026-2788)
      * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-2784)
      * firefox: Incorrect boundary conditions in the Graphics: ImageLib component (CVE-2026-2759)
      * firefox: Integer overflow in the JavaScript: Standard Library component (CVE-2026-2762)
      * firefox: Sandbox escape in the Graphics: WebRender component (CVE-2026-2761)
      * firefox: Privilege escalation in the Messaging System component (CVE-2026-2777)
      * firefox: Same-origin policy bypass in the Networking: JAR component (CVE-2026-2790)
      * firefox: Mitigation bypass in the DOM: HTML Parser component (CVE-2026-2775)
      * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2763)
      * firefox: Memory safety bugs fixed in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and     Thunderbird 148 (CVE-2026-2792)
      * firefox: Incorrect boundary conditions in the Web Audio component (CVE-2026-2773)
      * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2786)
      * firefox: Use-after-free in the Graphics: ImageLib component (CVE-2026-2789)
      * firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Audio/Video component     (CVE-2026-2757)
      * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component     (CVE-2026-2760)
      * firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-2772)
      * firefox: Incorrect boundary conditions in the Networking: JAR component (CVE-2026-2779)
      * firefox: Use-after-free in the JavaScript: WebAssembly component (CVE-2026-2767)
      * firefox: JIT miscompilation, use-after-free in the JavaScript Engine: JIT component (CVE-2026-2764)
      * firefox: Privilege escalation in the Netmonitor component (CVE-2026-2782)
      * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2765)
      * firefox: Privilege escalation in the Netmonitor component (CVE-2026-2780)
      * firefox: Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component     (CVE-2026-2778)
      * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-2758)
      * firefox: Mitigation bypass in the Networking: Cache component (CVE-2026-2791)
      * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-2770)

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 remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:3492 advisory.

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

    Security Fix(es):

    * libvpx: Heap buffer overflow in libvpx (CVE-2026-2447)

    * firefox: Invalid pointer in the JavaScript Engine component (CVE-2026-2785)

    * firefox: Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8,     Firefox 148 and Thunderbird 148 (CVE-2026-2793)

    * firefox: Undefined behavior in the DOM: Core & HTML component (CVE-2026-2771)

    * firefox: Integer overflow in the Audio/Video component (CVE-2026-2774)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Telemetry component in External     Software (CVE-2026-2776)

    * firefox: Integer overflow in the Libraries component in NSS (CVE-2026-2781)

    * firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-2766)

    * firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-2769)

    * firefox: Use-after-free in the DOM: Window and Location component (CVE-2026-2787)

    * firefox: Sandbox escape in the Storage: IndexedDB component (CVE-2026-2768)

    * firefox: Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component     (CVE-2026-2783)

    * firefox: Incorrect boundary conditions in the Audio/Video: GMP component (CVE-2026-2788)

    * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-2784)

    * firefox: Incorrect boundary conditions in the Graphics: ImageLib component (CVE-2026-2759)

    * firefox: Integer overflow in the JavaScript: Standard Library component (CVE-2026-2762)

    * firefox: Sandbox escape in the Graphics: WebRender component (CVE-2026-2761)

    * firefox: Privilege escalation in the Messaging System component (CVE-2026-2777)

    * firefox: Same-origin policy bypass in the Networking: JAR component (CVE-2026-2790)

    * firefox: Mitigation bypass in the DOM: HTML Parser component (CVE-2026-2775)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2763)

    * firefox: Memory safety bugs fixed in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and     Thunderbird 148 (CVE-2026-2792)

    * firefox: Incorrect boundary conditions in the Web Audio component (CVE-2026-2773)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2786)

    * firefox: Use-after-free in the Graphics: ImageLib component (CVE-2026-2789)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Audio/Video component (CVE-2026-2757)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component     (CVE-2026-2760)

    * firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-2772)

    * firefox: Incorrect boundary conditions in the Networking: JAR component (CVE-2026-2779)

    * firefox: Use-after-free in the JavaScript: WebAssembly component (CVE-2026-2767)

    * firefox: JIT miscompilation, use-after-free in the JavaScript Engine: JIT component (CVE-2026-2764)

    * firefox: Privilege escalation in the Netmonitor component (CVE-2026-2782)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2765)

    * firefox: Privilege escalation in the Netmonitor component (CVE-2026-2780)

    * firefox: Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component     (CVE-2026-2778)

    * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-2758)

    * firefox: Mitigation bypass in the Networking: Cache component (CVE-2026-2791)

    * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-2770)

    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 AlmaLinux 9.2 host has a package installed that is affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1783970136 advisory.

  - Insufficient checks when processing graphics shared memory could have led to memory corruption. This could     be leveraged by an attacker to perform a sandbox escape. This vulnerability affects Firefox < 129, Firefox     ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14. (CVE-2024-7519)

  - JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146,     Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6. (CVE-2025-14324)

  - Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability was fixed in     Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
    (CVE-2026-2757)

  - Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148, Firefox ESR     115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. (CVE-2026-2758)

  - Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This     vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and     Thunderbird 140.8. (CVE-2026-2760)

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_3516 advisory.

    * libvpx: Heap buffer overflow in libvpx (CVE-2026-2447)

    * firefox: Invalid pointer in the JavaScript Engine component (CVE-2026-2785)

    * firefox: Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8,     Firefox 148 and Thunderbird 148 (CVE-2026-2793)

    * firefox: Undefined behavior in the DOM: Core & HTML component (CVE-2026-2771)

    * firefox: Integer overflow in the Audio/Video component (CVE-2026-2774)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Telemetry component in External     Software (CVE-2026-2776)

    * firefox: Integer overflow in the Libraries component in NSS (CVE-2026-2781)

    * firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-2766)

    * firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-2769)

    * firefox: Use-after-free in the DOM: Window and Location component (CVE-2026-2787)

    * firefox: Sandbox escape in the Storage: IndexedDB component (CVE-2026-2768)

    * firefox: Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component     (CVE-2026-2783)

    * firefox: Incorrect boundary conditions in the Audio/Video: GMP component (CVE-2026-2788)

    * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-2784)

    * firefox: Incorrect boundary conditions in the Graphics: ImageLib component (CVE-2026-2759)

    * firefox: Integer overflow in the JavaScript: Standard Library component (CVE-2026-2762)

    * firefox: Sandbox escape in the Graphics: WebRender component (CVE-2026-2761)

    * firefox: Privilege escalation in the Messaging System component (CVE-2026-2777)

    * firefox: Same-origin policy bypass in the Networking: JAR component (CVE-2026-2790)

    * firefox: Mitigation bypass in the DOM: HTML Parser component (CVE-2026-2775)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2763)

    * firefox: Memory safety bugs fixed in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and     Thunderbird 148 (CVE-2026-2792)

    * firefox: Incorrect boundary conditions in the Web Audio component (CVE-2026-2773)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2786)

    * firefox: Use-after-free in the Graphics: ImageLib component (CVE-2026-2789)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Audio/Video component (CVE-2026-2757)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component     (CVE-2026-2760)

    * firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-2772)

    * firefox: Incorrect boundary conditions in the Networking: JAR component (CVE-2026-2779)

    * firefox: Use-after-free in the JavaScript: WebAssembly component (CVE-2026-2767)

    * firefox: JIT miscompilation, use-after-free in the JavaScript Engine: JIT component (CVE-2026-2764)

    * firefox: Privilege escalation in the Netmonitor component (CVE-2026-2782)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2765)

    * firefox: Privilege escalation in the Netmonitor component (CVE-2026-2780)

    * firefox: Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component     (CVE-2026-2778)

    * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-2758)

    * firefox: Mitigation bypass in the Networking: Cache component (CVE-2026-2791)

    * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-2770)

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 Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-2026_3515 advisory.

    * libvpx: Heap buffer overflow in libvpx (CVE-2026-2447)

    * firefox: Invalid pointer in the JavaScript Engine component (CVE-2026-2785)

    * firefox: Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8,     Firefox 148 and Thunderbird 148 (CVE-2026-2793)

    * firefox: Undefined behavior in the DOM: Core & HTML component (CVE-2026-2771)

    * firefox: Integer overflow in the Audio/Video component (CVE-2026-2774)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Telemetry component in External     Software (CVE-2026-2776)

    * firefox: Integer overflow in the Libraries component in NSS (CVE-2026-2781)

    * firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-2766)

    * firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-2769)

    * firefox: Use-after-free in the DOM: Window and Location component (CVE-2026-2787)

    * firefox: Sandbox escape in the Storage: IndexedDB component (CVE-2026-2768)

    * firefox: Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component     (CVE-2026-2783)

    * firefox: Incorrect boundary conditions in the Audio/Video: GMP component (CVE-2026-2788)

    * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-2784)

    * firefox: Incorrect boundary conditions in the Graphics: ImageLib component (CVE-2026-2759)

    * firefox: Integer overflow in the JavaScript: Standard Library component (CVE-2026-2762)

    * firefox: Sandbox escape in the Graphics: WebRender component (CVE-2026-2761)

    * firefox: Privilege escalation in the Messaging System component (CVE-2026-2777)

    * firefox: Same-origin policy bypass in the Networking: JAR component (CVE-2026-2790)

    * firefox: Mitigation bypass in the DOM: HTML Parser component (CVE-2026-2775)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2763)

    * firefox: Memory safety bugs fixed in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and     Thunderbird 148 (CVE-2026-2792)

    * firefox: Incorrect boundary conditions in the Web Audio component (CVE-2026-2773)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2786)

    * firefox: Use-after-free in the Graphics: ImageLib component (CVE-2026-2789)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Audio/Video component (CVE-2026-2757)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component     (CVE-2026-2760)

    * firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-2772)

    * firefox: Incorrect boundary conditions in the Networking: JAR component (CVE-2026-2779)

    * firefox: Use-after-free in the JavaScript: WebAssembly component (CVE-2026-2767)

    * firefox: JIT miscompilation, use-after-free in the JavaScript Engine: JIT component (CVE-2026-2764)

    * firefox: Privilege escalation in the Netmonitor component (CVE-2026-2782)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2765)

    * firefox: Privilege escalation in the Netmonitor component (CVE-2026-2780)

    * firefox: Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component     (CVE-2026-2778)

    * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-2758)

    * firefox: Mitigation bypass in the Networking: Cache component (CVE-2026-2791)

    * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-2770)

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
304276	Amazon Linux 2023 : firefox (ALAS2023-2026-1470)	Nessus	Amazon Linux Local Security Checks	2026/3/30	2026/3/30	critical
299869	Mozilla Firefox ESR < 140.8	Nessus	Windows	2026/2/24	2026/4/30	critical
299870	Mozilla Firefox ESR < 140.8	Nessus	MacOS X Local Security Checks	2026/2/24	2026/4/30	critical
300028	AlmaLinux 9 : firefox (ALSA-2026:3339)	Nessus	Alma Linux Local Security Checks	2026/2/26	2026/4/30	critical
300216	RHEL 8 : firefox (RHSA-2026:3492)	Nessus	Red Hat Local Security Checks	2026/3/2	2026/4/30	critical
352859	AlmaLinux 9.2 [TuxCare] Security Update: thunderbird Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1783970136)	Nessus	Alma Linux Local Security Checks	2026/9/30	2026/9/30	critical
358714	Rocky Linux 9 [CIQ] Security Update: thunderbird / thunderbird-debuginfo / thunderbird-debugsource Multiple Vulnerabilities (crlsa-2026_3516)	Nessus	Rocky Linux Local Security Checks	2026/10/1	2026/10/1	critical
357903	Rocky Linux 8 [CIQ] Security Update: thunderbird / thunderbird-debuginfo / thunderbird-debugsource Multiple Vulnerabilities (crlsa-2026_3515)	Nessus	Rocky Linux Local Security Checks	2026/10/1	2026/10/1	critical

检测

插件搜索

critical

critical

critical

critical

critical

critical

critical

critical