The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 150.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-33 advisory.

  - Incorrect boundary conditions, integer overflow in the Audio/Video: Playback component. This vulnerability     was fixed in Firefox 150 and Thunderbird 150. (CVE-2026-6783)

  - Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR     115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. (CVE-2026-6746)

  - Use-after-free in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10,     Thunderbird 150, and Thunderbird 140.10. (CVE-2026-6747)

  - Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox     150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. (CVE-2026-6748, CVE-2026-6751)

  - Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability     was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
    (CVE-2026-6749)

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

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:10757 advisory.

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6772)

    * firefox: thunderbird: Use-after-free in the JavaScript Engine component (CVE-2026-6754)

    * firefox: thunderbird: Spoofing issue in the DOM: Core & HTML component (CVE-2026-6762)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6752)

    * firefox: thunderbird: Other issue in the Storage: IndexedDB component (CVE-2026-6770)

    * firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-6757)

    * firefox: thunderbird: Other issue in the Libraries component in NSS (CVE-2026-6767)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox     150 and Thunderbird 150 (CVE-2026-6786)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6753)

    * firefox: thunderbird: Use-after-free in the Widget: Cocoa component (CVE-2026-6759)

    * firefox: thunderbird: Use-after-free in the WebRTC component (CVE-2026-6747)

    * firefox: thunderbird: Information disclosure due to uninitialized memory in the Graphics: Canvas2D     component (CVE-2026-6749)

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6766)

    * firefox: thunderbird: Privilege escalation in the Networking component (CVE-2026-6761)

    * firefox: thunderbird: Mitigation bypass in the File Handling component (CVE-2026-6763)

    * firefox: thunderbird: Privilege escalation in the Graphics: WebRender component (CVE-2026-6750)

    * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6748)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird     ESR 140.10, Firefox 150 and Thunderbird 150 (CVE-2026-6785)

    * firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-6771)

    * firefox: thunderbird: Incorrect boundary conditions in the DOM: Device Interfaces component     (CVE-2026-6764)

    * firefox: thunderbird: Information disclosure in the Form Autofill component (CVE-2026-6765)

    * firefox: thunderbird: Privilege escalation in the Debugger component (CVE-2026-6769)

    * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6751)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-6776)

    * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-6746)

Tenable has extracted the preceding description block directly from the RockyLinux 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 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:19131 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6772)

    * firefox: thunderbird: Use-after-free in the JavaScript Engine component (CVE-2026-6754)

    * firefox: thunderbird: Spoofing issue in the DOM: Core & HTML component (CVE-2026-6762)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6752)

    * firefox: thunderbird: Other issue in the Storage: IndexedDB component (CVE-2026-6770)

    * firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-6757)

    * firefox: thunderbird: Other issue in the Libraries component in NSS (CVE-2026-6767)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox     150 and Thunderbird 150 (CVE-2026-6786)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6753)

    * firefox: thunderbird: Use-after-free in the Widget: Cocoa component (CVE-2026-6759)

    * firefox: thunderbird: Use-after-free in the WebRTC component (CVE-2026-6747)

    * firefox: thunderbird: Information disclosure due to uninitialized memory in the Graphics: Canvas2D     component (CVE-2026-6749)

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6766)

    * firefox: thunderbird: Privilege escalation in the Networking component (CVE-2026-6761)

    * firefox: thunderbird: Mitigation bypass in the File Handling component (CVE-2026-6763)

    * firefox: thunderbird: Privilege escalation in the Graphics: WebRender component (CVE-2026-6750)

    * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6748)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird     ESR 140.10, Firefox 150 and Thunderbird 150 (CVE-2026-6785)

    * firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-6771)

    * firefox: thunderbird: Incorrect boundary conditions in the DOM: Device Interfaces component     (CVE-2026-6764)

    * firefox: thunderbird: Information disclosure in the Form Autofill component (CVE-2026-6765)

    * firefox: thunderbird: Privilege escalation in the Debugger component (CVE-2026-6769)

    * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6751)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-6776)

    * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-6746)

    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 remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:17689 advisory.

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

    Security Fix(es):

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6772)

    * firefox: thunderbird: Use-after-free in the JavaScript Engine component (CVE-2026-6754)

    * firefox: thunderbird: Spoofing issue in the DOM: Core & HTML component (CVE-2026-6762)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6752)

    * firefox: thunderbird: Other issue in the Storage: IndexedDB component (CVE-2026-6770)

    * firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-6757)

    * firefox: thunderbird: Other issue in the Libraries component in NSS (CVE-2026-6767)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox     150 and Thunderbird 150 (CVE-2026-6786)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6753)

    * firefox: thunderbird: Use-after-free in the Widget: Cocoa component (CVE-2026-6759)

    * firefox: thunderbird: Use-after-free in the WebRTC component (CVE-2026-6747)

    * firefox: thunderbird: Information disclosure due to uninitialized memory in the Graphics: Canvas2D     component (CVE-2026-6749)

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6766)

    * firefox: thunderbird: Privilege escalation in the Networking component (CVE-2026-6761)

    * firefox: thunderbird: Mitigation bypass in the File Handling component (CVE-2026-6763)

    * firefox: thunderbird: Privilege escalation in the Graphics: WebRender component (CVE-2026-6750)

    * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6748)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird     ESR 140.10, Firefox 150 and Thunderbird 150 (CVE-2026-6785)

    * firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-6771)

    * firefox: thunderbird: Incorrect boundary conditions in the DOM: Device Interfaces component     (CVE-2026-6764)

    * firefox: thunderbird: Information disclosure in the Form Autofill component (CVE-2026-6765)

    * firefox: thunderbird: Privilege escalation in the Debugger component (CVE-2026-6769)

    * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6751)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-6776)

    * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-6746)

    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 remote Redhat Enterprise Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:19463 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6772)

    * firefox: thunderbird: Use-after-free in the JavaScript Engine component (CVE-2026-6754)

    * firefox: thunderbird: Spoofing issue in the DOM: Core & HTML component (CVE-2026-6762)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6752)

    * firefox: thunderbird: Other issue in the Storage: IndexedDB component (CVE-2026-6770)

    * firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-6757)

    * firefox: thunderbird: Other issue in the Libraries component in NSS (CVE-2026-6767)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox     150 and Thunderbird 150 (CVE-2026-6786)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6753)

    * firefox: thunderbird: Use-after-free in the Widget: Cocoa component (CVE-2026-6759)

    * firefox: thunderbird: Use-after-free in the WebRTC component (CVE-2026-6747)

    * firefox: thunderbird: Information disclosure due to uninitialized memory in the Graphics: Canvas2D     component (CVE-2026-6749)

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6766)

    * firefox: thunderbird: Privilege escalation in the Networking component (CVE-2026-6761)

    * firefox: thunderbird: Mitigation bypass in the File Handling component (CVE-2026-6763)

    * firefox: thunderbird: Privilege escalation in the Graphics: WebRender component (CVE-2026-6750)

    * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6748)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird     ESR 140.10, Firefox 150 and Thunderbird 150 (CVE-2026-6785)

    * firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-6771)

    * firefox: thunderbird: Incorrect boundary conditions in the DOM: Device Interfaces component     (CVE-2026-6764)

    * firefox: thunderbird: Information disclosure in the Form Autofill component (CVE-2026-6765)

    * firefox: thunderbird: Privilege escalation in the Debugger component (CVE-2026-6769)

    * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6751)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-6776)

    * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-6746)

    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 remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:17477 advisory.

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

    Security Fix(es):

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6772)

    * firefox: thunderbird: Use-after-free in the JavaScript Engine component (CVE-2026-6754)

    * firefox: thunderbird: Spoofing issue in the DOM: Core & HTML component (CVE-2026-6762)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6752)

    * firefox: thunderbird: Other issue in the Storage: IndexedDB component (CVE-2026-6770)

    * firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-6757)

    * firefox: thunderbird: Other issue in the Libraries component in NSS (CVE-2026-6767)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox     150 and Thunderbird 150 (CVE-2026-6786)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6753)

    * firefox: thunderbird: Use-after-free in the Widget: Cocoa component (CVE-2026-6759)

    * firefox: thunderbird: Use-after-free in the WebRTC component (CVE-2026-6747)

    * firefox: thunderbird: Information disclosure due to uninitialized memory in the Graphics: Canvas2D     component (CVE-2026-6749)

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6766)

    * firefox: thunderbird: Privilege escalation in the Networking component (CVE-2026-6761)

    * firefox: thunderbird: Mitigation bypass in the File Handling component (CVE-2026-6763)

    * firefox: thunderbird: Privilege escalation in the Graphics: WebRender component (CVE-2026-6750)

    * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6748)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird     ESR 140.10, Firefox 150 and Thunderbird 150 (CVE-2026-6785)

    * firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-6771)

    * firefox: thunderbird: Incorrect boundary conditions in the DOM: Device Interfaces component     (CVE-2026-6764)

    * firefox: thunderbird: Information disclosure in the Form Autofill component (CVE-2026-6765)

    * firefox: thunderbird: Privilege escalation in the Debugger component (CVE-2026-6769)

    * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6751)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-6776)

    * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-6746)

    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 remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:17688 advisory.

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

    Security Fix(es):

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6772)

    * firefox: thunderbird: Use-after-free in the JavaScript Engine component (CVE-2026-6754)

    * firefox: thunderbird: Spoofing issue in the DOM: Core & HTML component (CVE-2026-6762)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6752)

    * firefox: thunderbird: Other issue in the Storage: IndexedDB component (CVE-2026-6770)

    * firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-6757)

    * firefox: thunderbird: Other issue in the Libraries component in NSS (CVE-2026-6767)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox     150 and Thunderbird 150 (CVE-2026-6786)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6753)

    * firefox: thunderbird: Use-after-free in the Widget: Cocoa component (CVE-2026-6759)

    * firefox: thunderbird: Use-after-free in the WebRTC component (CVE-2026-6747)

    * firefox: thunderbird: Information disclosure due to uninitialized memory in the Graphics: Canvas2D     component (CVE-2026-6749)

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6766)

    * firefox: thunderbird: Privilege escalation in the Networking component (CVE-2026-6761)

    * firefox: thunderbird: Mitigation bypass in the File Handling component (CVE-2026-6763)

    * firefox: thunderbird: Privilege escalation in the Graphics: WebRender component (CVE-2026-6750)

    * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6748)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird     ESR 140.10, Firefox 150 and Thunderbird 150 (CVE-2026-6785)

    * firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-6771)

    * firefox: thunderbird: Incorrect boundary conditions in the DOM: Device Interfaces component     (CVE-2026-6764)

    * firefox: thunderbird: Information disclosure in the Form Autofill component (CVE-2026-6765)

    * firefox: thunderbird: Privilege escalation in the Debugger component (CVE-2026-6769)

    * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6751)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-6776)

    * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-6746)

    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 remote MiracleLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2026-616:11 advisory.

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6772)
      * firefox: thunderbird: Use-after-free in the JavaScript Engine component (CVE-2026-6754)
      * firefox: thunderbird: Spoofing issue in the DOM: Core & HTML component (CVE-2026-6762)
      * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6752)
      * firefox: thunderbird: Other issue in the Storage: IndexedDB component (CVE-2026-6770)
      * firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-6757)
      * firefox: thunderbird: Other issue in the Libraries component in NSS (CVE-2026-6767)
      * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox     150 and Thunderbird 150 (CVE-2026-6786)
      * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6753)
      * firefox: thunderbird: Use-after-free in the Widget: Cocoa component (CVE-2026-6759)
      * firefox: thunderbird: Use-after-free in the WebRTC component (CVE-2026-6747)
      * firefox: thunderbird: Information disclosure due to uninitialized memory in the Graphics: Canvas2D     component (CVE-2026-6749)
      * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6766)
      * firefox: thunderbird: Privilege escalation in the Networking component (CVE-2026-6761)
      * firefox: thunderbird: Mitigation bypass in the File Handling component (CVE-2026-6763)
      * firefox: thunderbird: Privilege escalation in the Graphics: WebRender component (CVE-2026-6750)
      * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6748)
      * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird     ESR 140.10, Firefox 150 and Thunderbird 150 (CVE-2026-6785)
      * firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-6771)
      * firefox: thunderbird: Incorrect boundary conditions in the DOM: Device Interfaces component     (CVE-2026-6764)
      * firefox: thunderbird: Information disclosure in the Form Autofill component (CVE-2026-6765)
      * firefox: thunderbird: Privilege escalation in the Debugger component (CVE-2026-6769)
      * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6751)
      * firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Networking component     (CVE-2026-6776)
      * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-6746)

Tenable has extracted the preceding description block directly from the MiracleLinux 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 Oracle Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2026-19348 advisory.

    [140.11.0-1.0.1]
    - Fix prefs for new nss [Orabug: 37079813]
    - Add Oracle prefs

    [140.11.0]
    - Add OpenELA debranding

    [140.11.0-1]
    - Update to 140.11.0 ESR

    [140.10.1-1]
    - Update to 140.10.1 ESR

Tenable has extracted the preceding description block directly from the Oracle 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 Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-2026_19201 advisory.

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6772)

    * firefox: thunderbird: Use-after-free in the JavaScript Engine component (CVE-2026-6754)

    * firefox: thunderbird: Spoofing issue in the DOM: Core & HTML component (CVE-2026-6762)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6752)

    * firefox: thunderbird: Other issue in the Storage: IndexedDB component (CVE-2026-6770)

    * firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-6757)

    * firefox: thunderbird: Other issue in the Libraries component in NSS (CVE-2026-6767)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox     150 and Thunderbird 150 (CVE-2026-6786)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6753)

    * firefox: thunderbird: Use-after-free in the Widget: Cocoa component (CVE-2026-6759)

    * firefox: thunderbird: Use-after-free in the WebRTC component (CVE-2026-6747)

    * firefox: thunderbird: Information disclosure due to uninitialized memory in the Graphics: Canvas2D     component (CVE-2026-6749)

    * firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6766)

    * firefox: thunderbird: Privilege escalation in the Networking component (CVE-2026-6761)

    * firefox: thunderbird: Mitigation bypass in the File Handling component (CVE-2026-6763)

    * firefox: thunderbird: Privilege escalation in the Graphics: WebRender component (CVE-2026-6750)

    * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6748)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird     ESR 140.10, Firefox 150 and Thunderbird 150 (CVE-2026-6785)

    * firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-6771)

    * firefox: thunderbird: Incorrect boundary conditions in the DOM: Device Interfaces component     (CVE-2026-6764)

    * firefox: thunderbird: Information disclosure in the Form Autofill component (CVE-2026-6765)

    * firefox: thunderbird: Privilege escalation in the Debugger component (CVE-2026-6769)

    * firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6751)

    * firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-6776)

    * firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-6746)

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 version of Firefox ESR installed on the remote Windows host is prior to 115.35. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-31 advisory.

  - Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox     ESR 140.8, Thunderbird 148, and Thunderbird 140.8. (CVE-2026-2781)

  - Memory safety bugs present in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149     and Thunderbird 149. 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-2026-6785)

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

ID	Name	Product	Family	Published	Updated	Severity
309098	Mozilla Thunderbird < 150.0	Nessus	MacOS X Local Security Checks	4/21/2026	5/7/2026	medium
310712	RockyLinux 9 : firefox (RLSA-2026:10757)	Nessus	Rocky Linux Local Security Checks	4/28/2026	4/30/2026	critical
315513	RHEL 10 : thunderbird (RHSA-2026:19131)	Nessus	Red Hat Local Security Checks	5/19/2026	5/19/2026	critical
315602	RHEL 9 : firefox (RHSA-2026:17689)	Nessus	Red Hat Local Security Checks	5/20/2026	5/20/2026	critical
315722	RHEL 10 : thunderbird (RHSA-2026:19463)	Nessus	Red Hat Local Security Checks	5/20/2026	5/20/2026	critical
314645	RHEL 8 : firefox (RHSA-2026:17477)	Nessus	Red Hat Local Security Checks	5/14/2026	5/14/2026	critical
314753	RHEL 9 : firefox (RHSA-2026:17688)	Nessus	Red Hat Local Security Checks	5/14/2026	5/14/2026	critical
314901	MiracleLinux 9 : thunderbird-140.10.0-1.el9_7.ML.1 (AXSA:2026-616:11)	Nessus	Miracle Linux Local Security Checks	5/15/2026	5/15/2026	critical
323108	Oracle Linux 9 : thunderbird (ELSA-2026-19348)	Nessus	Oracle Linux Local Security Checks	6/26/2026	6/26/2026	critical
354889	Rocky Linux 9 [CIQ] Security Update: firefox / firefox-debuginfo / firefox-debugsource / firefox-x11 Multiple Vulnerabilities (crlsa-2026_19201)	Nessus	Rocky Linux Local Security Checks	10/1/2026	10/1/2026	critical
307898	Mozilla Firefox ESR < 115.35	Nessus	Windows	4/21/2026	4/21/2026	critical

Detections

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medium

critical

critical

critical

critical

critical

critical

critical

critical

critical

critical