The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:1462 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * firefox: Spoofing issue in the Downloads Panel component (CVE-2025-14327)

    * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-0885)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147     and Thunderbird 147 (CVE-2026-0891)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component     (CVE-2026-0878)

    * firefox: Use-after-free in the IPC component (CVE-2026-0882)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-0884)

    * firefox: Information disclosure in the Networking component (CVE-2026-0883)

    * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-0877)

    * firefox: Spoofing issue in the DOM: Copy & Paste and Drag & Drop component (CVE-2026-0890)

    * firefox: Clickjacking issue, information disclosure in the PDF Viewer component (CVE-2026-0887)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics component (CVE-2026-0879)

    * firefox: Sandbox escape due to integer overflow in the Graphics component (CVE-2026-0880)

    * firefox: Incorrect boundary conditions in the Graphics component (CVE-2026-0886)

    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-2026:1461 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * firefox: Spoofing issue in the Downloads Panel component (CVE-2025-14327)

    * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-0885)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147     and Thunderbird 147 (CVE-2026-0891)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component     (CVE-2026-0878)

    * firefox: Use-after-free in the IPC component (CVE-2026-0882)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-0884)

    * firefox: Information disclosure in the Networking component (CVE-2026-0883)

    * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-0877)

    * firefox: Spoofing issue in the DOM: Copy & Paste and Drag & Drop component (CVE-2026-0890)

    * firefox: Clickjacking issue, information disclosure in the PDF Viewer component (CVE-2026-0887)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics component (CVE-2026-0879)

    * firefox: Sandbox escape due to integer overflow in the Graphics component (CVE-2026-0880)

    * firefox: Incorrect boundary conditions in the Graphics component (CVE-2026-0886)

    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-2026:1471 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * firefox: Spoofing issue in the Downloads Panel component (CVE-2025-14327)

    * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-0885)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147     and Thunderbird 147 (CVE-2026-0891)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component     (CVE-2026-0878)

    * firefox: Use-after-free in the IPC component (CVE-2026-0882)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-0884)

    * firefox: Information disclosure in the Networking component (CVE-2026-0883)

    * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-0877)

    * firefox: Spoofing issue in the DOM: Copy & Paste and Drag & Drop component (CVE-2026-0890)

    * firefox: Clickjacking issue, information disclosure in the PDF Viewer component (CVE-2026-0887)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics component (CVE-2026-0879)

    * firefox: Sandbox escape due to integer overflow in the Graphics component (CVE-2026-0880)

    * firefox: Incorrect boundary conditions in the Graphics component (CVE-2026-0886)

    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-2026:2286 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * firefox: Spoofing issue in the Downloads Panel component (CVE-2025-14327)

    * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-0885)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147     and Thunderbird 147 (CVE-2026-0891)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component     (CVE-2026-0878)

    * firefox: Use-after-free in the IPC component (CVE-2026-0882)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-0884)

    * firefox: Information disclosure in the Networking component (CVE-2026-0883)

    * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-0877)

    * firefox: Spoofing issue in the DOM: Copy & Paste and Drag & Drop component (CVE-2026-0890)

    * firefox: Clickjacking issue, information disclosure in the PDF Viewer component (CVE-2026-0887)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics component (CVE-2026-0879)

    * firefox: Sandbox escape due to integer overflow in the Graphics component (CVE-2026-0880)

    * firefox: Incorrect boundary conditions in the Graphics component (CVE-2026-0886)

    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 AlmaLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:2220 advisory.

    * firefox: Spoofing issue in the Downloads Panel component (CVE-2025-14327)
      * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-0885)
      * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox     147 and Thunderbird 147 (CVE-2026-0891)
      * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component     (CVE-2026-0878)
      * firefox: Use-after-free in the IPC component (CVE-2026-0882)
      * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-0884)
      * firefox: Information disclosure in the Networking component (CVE-2026-0883)
      * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-0877)
      * firefox: Spoofing issue in the DOM: Copy & Paste and Drag & Drop component (CVE-2026-0890)
      * firefox: Clickjacking issue, information disclosure in the PDF Viewer component (CVE-2026-0887)
      * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics component (CVE-2026-0879)
      * firefox: Sandbox escape due to integer overflow in the Graphics component (CVE-2026-0880)
      * firefox: Incorrect boundary conditions in the Graphics component (CVE-2026-0886)

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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Information disclosure in the Networking component. This vulnerability was fixed in Firefox 147, Firefox     ESR 140.7, Thunderbird 147, and Thunderbird 140.7. (CVE-2026-0883)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Debian 12 / 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6101 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6101-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     January 15, 2026                      https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : firefox-esr     CVE ID         : CVE-2025-14327 CVE-2026-0877 CVE-2026-0878 CVE-2026-0879                      CVE-2026-0880 CVE-2026-0882 CVE-2026-0883 CVE-2026-0884                      CVE-2026-0885 CVE-2026-0886 CVE-2026-0887 CVE-2026-0890                      CVE-2026-0891

    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 spoofing.

    For the oldstable distribution (bookworm), these problems have been fixed     in version 140.7.0esr-1~deb12u1.

    For the stable distribution (trixie), these problems have been fixed in     version 140.7.0esr-1~deb13u1.

    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 Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

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 version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 085101eb-f212-11f0-9ca3-b42e991fc52e advisory.

    Memory safety bugs present in firefox-esr 140.6,             Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146.
    Spoofing issue in the DOM: Copy & Paste and Drag &             Drop component.
    Clickjacking issue and information disclosure in the PDF             Viewer component.
    Use-after-free in the JavaScript: GC component.
    Use-after-free in the JavaScript Engine component.
    Information disclosure in the Networking component.
    Sandbox escape due to incorrect boundary conditions in the             Graphics: CanvasWebGL component.

Tenable has extracted the preceding description block directly from the FreeBSD 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 AlmaLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:0924 advisory.

    * firefox: Spoofing issue in the Downloads Panel component (CVE-2025-14327)
      * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-0885)
      * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox     147 and Thunderbird 147 (CVE-2026-0891)
      * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component     (CVE-2026-0878)
      * firefox: Use-after-free in the IPC component (CVE-2026-0882)
      * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-0884)
      * firefox: Information disclosure in the Networking component (CVE-2026-0883)
      * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-0877)
      * firefox: Spoofing issue in the DOM: Copy & Paste and Drag & Drop component (CVE-2026-0890)
      * firefox: Clickjacking issue, information disclosure in the PDF Viewer component (CVE-2026-0887)
      * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics component (CVE-2026-0879)
      * firefox: Sandbox escape due to integer overflow in the Graphics component (CVE-2026-0880)
      * firefox: Incorrect boundary conditions in the Graphics component (CVE-2026-0886)

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-2026:2069 advisory.

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

    Security Fix(es):

    * firefox: Spoofing issue in the Downloads Panel component (CVE-2025-14327)

    * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-0885)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147     and Thunderbird 147 (CVE-2026-0891)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component     (CVE-2026-0878)

    * firefox: Use-after-free in the IPC component (CVE-2026-0882)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-0884)

    * firefox: Information disclosure in the Networking component (CVE-2026-0883)

    * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-0877)

    * firefox: Spoofing issue in the DOM: Copy & Paste and Drag & Drop component (CVE-2026-0890)

    * firefox: Clickjacking issue, information disclosure in the PDF Viewer component (CVE-2026-0887)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics component (CVE-2026-0879)

    * firefox: Sandbox escape due to integer overflow in the Graphics component (CVE-2026-0880)

    * firefox: Incorrect boundary conditions in the Graphics component (CVE-2026-0886)

    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-2026:2070 advisory.

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

    Security Fix(es):

    * firefox: Spoofing issue in the Downloads Panel component (CVE-2025-14327)

    * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-0885)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147     and Thunderbird 147 (CVE-2026-0891)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component     (CVE-2026-0878)

    * firefox: Use-after-free in the IPC component (CVE-2026-0882)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-0884)

    * firefox: Information disclosure in the Networking component (CVE-2026-0883)

    * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-0877)

    * firefox: Spoofing issue in the DOM: Copy & Paste and Drag & Drop component (CVE-2026-0890)

    * firefox: Clickjacking issue, information disclosure in the PDF Viewer component (CVE-2026-0887)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics component (CVE-2026-0879)

    * firefox: Sandbox escape due to integer overflow in the Graphics component (CVE-2026-0880)

    * firefox: Incorrect boundary conditions in the Graphics component (CVE-2026-0886)

    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-2026:2041 advisory.

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

    Security Fix(es):

    * firefox: Spoofing issue in the Downloads Panel component (CVE-2025-14327)

    * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-0885)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147     and Thunderbird 147 (CVE-2026-0891)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component     (CVE-2026-0878)

    * firefox: Use-after-free in the IPC component (CVE-2026-0882)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-0884)

    * firefox: Information disclosure in the Networking component (CVE-2026-0883)

    * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-0877)

    * firefox: Spoofing issue in the DOM: Copy & Paste and Drag & Drop component (CVE-2026-0890)

    * firefox: Clickjacking issue, information disclosure in the PDF Viewer component (CVE-2026-0887)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics component (CVE-2026-0879)

    * firefox: Sandbox escape due to integer overflow in the Graphics component (CVE-2026-0880)

    * firefox: Incorrect boundary conditions in the Graphics component (CVE-2026-0886)

    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-2026:2043 advisory.

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

    Security Fix(es):

    * firefox: Spoofing issue in the Downloads Panel component (CVE-2025-14327)

    * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-0885)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147     and Thunderbird 147 (CVE-2026-0891)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component     (CVE-2026-0878)

    * firefox: Use-after-free in the IPC component (CVE-2026-0882)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-0884)

    * firefox: Information disclosure in the Networking component (CVE-2026-0883)

    * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-0877)

    * firefox: Spoofing issue in the DOM: Copy & Paste and Drag & Drop component (CVE-2026-0890)

    * firefox: Clickjacking issue, information disclosure in the PDF Viewer component (CVE-2026-0887)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics component (CVE-2026-0879)

    * firefox: Sandbox escape due to integer overflow in the Graphics component (CVE-2026-0880)

    * firefox: Incorrect boundary conditions in the Graphics component (CVE-2026-0886)

    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-2026:2271 advisory.

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

    Security Fix(es):

    * firefox: Spoofing issue in the Downloads Panel component (CVE-2025-14327)

    * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-0885)

    * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147     and Thunderbird 147 (CVE-2026-0891)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component     (CVE-2026-0878)

    * firefox: Use-after-free in the IPC component (CVE-2026-0882)

    * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-0884)

    * firefox: Information disclosure in the Networking component (CVE-2026-0883)

    * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-0877)

    * firefox: Spoofing issue in the DOM: Copy & Paste and Drag & Drop component (CVE-2026-0890)

    * firefox: Clickjacking issue, information disclosure in the PDF Viewer component (CVE-2026-0887)

    * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics component (CVE-2026-0879)

    * firefox: Sandbox escape due to integer overflow in the Graphics component (CVE-2026-0880)

    * firefox: Incorrect boundary conditions in the Graphics component (CVE-2026-0886)

    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 AlmaLinux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:2271 advisory.

    * firefox: Spoofing issue in the Downloads Panel component (CVE-2025-14327)
      * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-0885)
      * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox     147 and Thunderbird 147 (CVE-2026-0891)
      * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component     (CVE-2026-0878)
      * firefox: Use-after-free in the IPC component (CVE-2026-0882)
      * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-0884)
      * firefox: Information disclosure in the Networking component (CVE-2026-0883)
      * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-0877)
      * firefox: Spoofing issue in the DOM: Copy & Paste and Drag & Drop component (CVE-2026-0890)
      * firefox: Clickjacking issue, information disclosure in the PDF Viewer component (CVE-2026-0887)
      * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics component (CVE-2026-0879)
      * firefox: Sandbox escape due to integer overflow in the Graphics component (CVE-2026-0880)
      * firefox: Incorrect boundary conditions in the Graphics component (CVE-2026-0886)

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 AlmaLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:0667 advisory.

    * firefox: Spoofing issue in the Downloads Panel component (CVE-2025-14327)
      * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-0885)
      * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox     147 and Thunderbird 147 (CVE-2026-0891)
      * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component     (CVE-2026-0878)
      * firefox: Use-after-free in the IPC component (CVE-2026-0882)
      * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-0884)
      * firefox: Information disclosure in the Networking component (CVE-2026-0883)
      * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-0877)
      * firefox: Spoofing issue in the DOM: Copy & Paste and Drag & Drop component (CVE-2026-0890)
      * firefox: Clickjacking issue, information disclosure in the PDF Viewer component (CVE-2026-0887)
      * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics component (CVE-2026-0879)
      * firefox: Sandbox escape due to integer overflow in the Graphics component (CVE-2026-0880)
      * firefox: Incorrect boundary conditions in the Graphics component (CVE-2026-0886)

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
296998	RHEL 8 : thunderbird (RHSA-2026:1462)	Nessus	Red Hat Local Security Checks	2026/1/28	2026/1/28	high
297000	RHEL 8 : thunderbird (RHSA-2026:1461)	Nessus	Red Hat Local Security Checks	2026/1/28	2026/1/28	high
297019	RHEL 8 : thunderbird (RHSA-2026:1471)	Nessus	Red Hat Local Security Checks	2026/1/28	2026/1/28	high
298361	RHEL 10 : thunderbird (RHSA-2026:2286)	Nessus	Red Hat Local Security Checks	2026/2/9	2026/2/9	high
298481	AlmaLinux 8 : thunderbird (ALSA-2026:2220)	Nessus	Alma Linux Local Security Checks	2026/2/10	2026/2/10	high
282665	Linux Distros Unpatched Vulnerability : CVE-2026-0883	Nessus	Misc.	2026/1/13	2026/4/21	medium
287950	Debian dsa-6101 : firefox-esr - security update	Nessus	Debian Local Security Checks	2026/1/15	2026/1/15	high
291282	FreeBSD : Mozilla -- multiple vulnerabilities (085101eb-f212-11f0-9ca3-b42e991fc52e)	Nessus	FreeBSD Local Security Checks	2026/1/17	2026/2/24	critical
296495	AlmaLinux 9 : thunderbird (ALSA-2026:0924)	Nessus	Alma Linux Local Security Checks	2026/1/24	2026/1/24	high
298011	RHEL 8 : firefox (RHSA-2026:2069)	Nessus	Red Hat Local Security Checks	2026/2/5	2026/2/5	high
298016	RHEL 8 : firefox (RHSA-2026:2070)	Nessus	Red Hat Local Security Checks	2026/2/5	2026/2/5	high
298018	RHEL 9 : firefox (RHSA-2026:2041)	Nessus	Red Hat Local Security Checks	2026/2/5	2026/2/5	high
298061	RHEL 9 : firefox (RHSA-2026:2043)	Nessus	Red Hat Local Security Checks	2026/2/5	2026/2/5	high
298394	RHEL 10 : firefox (RHSA-2026:2271)	Nessus	Red Hat Local Security Checks	2026/2/9	2026/2/9	high
298506	AlmaLinux 10 : firefox (ALSA-2026:2271)	Nessus	Alma Linux Local Security Checks	2026/2/10	2026/2/10	high
299017	AlmaLinux 8 : firefox (ALSA-2026:0667)	Nessus	Alma Linux Local Security Checks	2026/2/13	2026/2/13	high

检测

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critical

high

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high