The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0880-1 advisory.

    Mozilla Thunderbird 140.8 MFSA 2026-17 (bsc#1258568):

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

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 openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20365-1 advisory.

    - Firefox Extended Support Release 140.8.0 ESR (bsc#1258568)
    - CVE-2026-2757: Incorrect boundary conditions in the WebRTC: Audio/Video component
    - CVE-2026-2758: Use-after-free in the JavaScript: GC component
    - CVE-2026-2759: Incorrect boundary conditions in the Graphics: ImageLib component
    - CVE-2026-2760: Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component
    - CVE-2026-2761: Sandbox escape in the Graphics: WebRender component
    - CVE-2026-2762: Integer overflow in the JavaScript: Standard Library component
    - CVE-2026-2763: Use-after-free in the JavaScript Engine component
    - CVE-2026-2764: JIT miscompilation, use-after-free in the JavaScript Engine: JIT component
    - CVE-2026-2765: Use-after-free in the JavaScript Engine component
    - CVE-2026-2766: Use-after-free in the JavaScript Engine: JIT component
    - CVE-2026-2767: Use-after-free in the JavaScript: WebAssembly component
    - CVE-2026-2768: Sandbox escape in the Storage: IndexedDB component
    - CVE-2026-2769: Use-after-free in the Storage: IndexedDB component
    - CVE-2026-2770: Use-after-free in the DOM: Bindings (WebIDL) component
    - CVE-2026-2771: Undefined behavior in the DOM: Core HTML component
    - CVE-2026-2772: Use-after-free in the Audio/Video: Playback component
    - CVE-2026-2773: Incorrect boundary conditions in the Web Audio component
    - CVE-2026-2774: Integer overflow in the Audio/Video component
    - CVE-2026-2775: Mitigation bypass in the DOM: HTML Parser component
    - CVE-2026-2776: Sandbox escape due to incorrect boundary conditions in the Telemetry component in     External Software
    - CVE-2026-2777: Privilege escalation in the Messaging System component
    - CVE-2026-2778: Sandbox escape due to incorrect boundary conditions in the DOM: Core HTML component
    - CVE-2026-2779: Incorrect boundary conditions in the Networking: JAR component
    - CVE-2026-2780: Privilege escalation in the Netmonitor component
    - CVE-2026-2781: Integer overflow in the Libraries component in NSS
    - CVE-2026-2782: Privilege escalation in the Netmonitor component
    - CVE-2026-2783: Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component
    - CVE-2026-2784: Mitigation bypass in the DOM: Security component
    - CVE-2026-2785: Invalid pointer in the JavaScript Engine component
    - CVE-2026-2786: Use-after-free in the JavaScript Engine component
    - CVE-2026-2787: Use-after-free in the DOM: Window and Location component
    - CVE-2026-2788: Incorrect boundary conditions in the Audio/Video: GMP component
    - CVE-2026-2789: Use-after-free in the Graphics: ImageLib component
    - CVE-2026-2790: Same-origin policy bypass in the Networking: JAR component
    - CVE-2026-2791: Mitigation bypass in the Networking: Cache component
    - CVE-2026-2792: Memory safety bugs fixed in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and     Thunderbird 148
    - CVE-2026-2793: Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8,     Firefox 148 and Thunderbird 148

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 Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:3516 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100938 advisory.

    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 was fixed in Firefox 148,     Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

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

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

ID	名前	製品	ファミリー	公開日	更新日	深刻度
302103	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : MozillaThunderbird (SUSE-SU-2026:0880-1)	Nessus	SuSE Local Security Checks	2026/3/13	2026/3/13	critical
303003	openSUSE 16 Security Update : MozillaFirefox (openSUSE-SU-2026:20365-1)	Nessus	SuSE Local Security Checks	2026/3/19	2026/3/19	critical
303442	RHEL 9 : thunderbird (RHSA-2026:3516)	Nessus	Red Hat Local Security Checks	2026/3/24	2026/3/24	critical
336417	Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: firefox (UTSA-2026-100938)	Nessus	Unity Linux Local Security Checks	2026/8/17	2026/8/17	critical

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