The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 156.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-94 advisory.

  - A maliciously constructed mail header could lead to multiple fields being parsed as one, or potential     memory safety violations. (CVE-2026-92238)

  - A maliciously constructed IMAP line could cause an out-of-bounds buffer read. (CVE-2026-92239)

  - A malicious or compromised IMAP server can trigger an out-of-bounds read in the IMAP response parser by     sending an untagged ' ID' response, crashing Thunderbird. The affected parsing path is reachable before     authentication. (CVE-2026-92240)

  - Use-after-free in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 156,     Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.
    (CVE-2026-92005)

  - Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This     vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3,     Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3. (CVE-2026-92006, CVE-2026-92007,     CVE-2026-92008, CVE-2026-92009, CVE-2026-92010, CVE-2026-92011, CVE-2026-92012, CVE-2026-92013)

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 Firefox installed on the remote Windows host is prior to 156.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-90 advisory.

  - Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 156,     Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3. (CVE-2026-92073)

  - Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 156 and     Thunderbird 156. (CVE-2026-92066)

  - Use-after-free in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 156,     Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.
    (CVE-2026-92005)

  - Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This     vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3,     Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3. (CVE-2026-92006, CVE-2026-92007,     CVE-2026-92008, CVE-2026-92009, CVE-2026-92010, CVE-2026-92011, CVE-2026-92012, CVE-2026-92013)

  - Privilege escalation in the WebExtensions component. This vulnerability was fixed in Firefox 156, Firefox     ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird     153.3. (CVE-2026-92015)

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 macOS or Mac OS X host is prior to 156.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-90 advisory.

  - Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 156,     Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3. (CVE-2026-92073)

  - Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 156 and     Thunderbird 156. (CVE-2026-92066)

  - Use-after-free in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 156,     Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.
    (CVE-2026-92005)

  - Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This     vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3,     Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3. (CVE-2026-92006, CVE-2026-92007,     CVE-2026-92008, CVE-2026-92009, CVE-2026-92010, CVE-2026-92011, CVE-2026-92012, CVE-2026-92013)

  - Privilege escalation in the WebExtensions component. This vulnerability was fixed in Firefox 156, Firefox     ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird     153.3. (CVE-2026-92015)

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
346176	Mozilla Thunderbird < 156.0	Nessus	MacOS X Local Security Checks	2026/9/16	2026/10/21	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
345901	Mozilla Firefox < 156.0	Nessus	Windows	2026/9/15	2026/10/8	critical
345903	Mozilla Firefox < 156.0	Nessus	MacOS X Local Security Checks	2026/9/15	2026/10/8	critical

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