The version of Firefox ESR installed on the remote Windows host is prior to 128.14. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-66 advisory.

  - Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR     140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. 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-2025-9185)

  - An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This     process is also heavily sandboxed, but represents slightly different privileges from the content process.
    (CVE-2025-9179)

  - Same-origin policy bypass in the Graphics: Canvas2D component. (CVE-2025-9180)

  - Uninitialized memory in the JavaScript Engine component. (CVE-2025-9181)

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-2025:14442 advisory.

    * firefox: thunderbird: Denial-of-service due to out-of-memory in the Graphics: WebRender component     (CVE-2025-9182)
      * thunderbird: firefox: Sandbox escape due to invalid pointer in the Audio/Video: GMP component     (CVE-2025-9179)
      * thunderbird: firefox: Same-origin policy bypass in the Graphics: Canvas2D component (CVE-2025-9180)
      * thunderbird: firefox: Uninitialized memory in the JavaScript Engine component (CVE-2025-9181)
      * thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.27, Firefox ESR 128.14, Thunderbird     ESR 128.14, Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142 (CVE-2025-9185)

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-2025:14743 advisory.

    * firefox: thunderbird: Denial-of-service due to out-of-memory in the Graphics: WebRender component     (CVE-2025-9182)
      * thunderbird: firefox: Sandbox escape due to invalid pointer in the Audio/Video: GMP component     (CVE-2025-9179)
      * thunderbird: firefox: Same-origin policy bypass in the Graphics: Canvas2D component (CVE-2025-9180)
      * thunderbird: firefox: Uninitialized memory in the JavaScript Engine component (CVE-2025-9181)
      * thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.27, Firefox ESR 128.14, Thunderbird     ESR 128.14, Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142 (CVE-2025-9185)

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 Debian 12 / 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5984 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-5984-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     August 24, 2025                       https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : thunderbird     CVE ID         : CVE-2025-9179 CVE-2025-9180 CVE-2025-9181 CVE-2025-9185

    Multiple security issues were discovered in Thunderbird, which could     result in the execution of arbitrary code.

    For the oldstable distribution (bookworm), these problems have been fixed     in version 1:128.14.0esr-1~deb12u1.

    For the stable distribution (trixie), these problems have been fixed in     version 1:128.14.0esr-1~deb13u1.

    We recommend that you upgrade your thunderbird packages.

    For the detailed security status of thunderbird please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/thunderbird

    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 Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0715 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2025-9185:
    Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR     140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. 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 < 142, Firefox ESR < 115.27, Firefox ESR < 128.14,     Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.

    CVE-2025-9181:
    Uninitialized memory in the JavaScript Engine component. This vulnerability affects Firefox < 142, Firefox     ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.

    CVE-2025-9180:
    'Same-origin policy bypass in the Graphics: Canvas2D component.' This vulnerability affects Firefox < 142,     Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14,     and Thunderbird < 140.2.

Tenable has extracted the preceding description block directly from the Tencent 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-2025:14743 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * firefox: thunderbird: Denial-of-service due to out-of-memory in the Graphics: WebRender component     (CVE-2025-9182)

    * thunderbird: firefox: Sandbox escape due to invalid pointer in the Audio/Video: GMP component     (CVE-2025-9179)

    * thunderbird: firefox: Same-origin policy bypass in the Graphics: Canvas2D component (CVE-2025-9180)

    * thunderbird: firefox: Uninitialized memory in the JavaScript Engine component (CVE-2025-9181)

    * thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.27, Firefox ESR 128.14, Thunderbird     ESR 128.14, Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142 (CVE-2025-9185)

    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-2025:15424 advisory.

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

    Security Fix(es):

    * firefox: thunderbird: Denial-of-service due to out-of-memory in the Graphics: WebRender component     (CVE-2025-9182)

    * thunderbird: firefox: Sandbox escape due to invalid pointer in the Audio/Video: GMP component     (CVE-2025-9179)

    * thunderbird: firefox: Same-origin policy bypass in the Graphics: Canvas2D component (CVE-2025-9180)

    * thunderbird: firefox: Uninitialized memory in the JavaScript Engine component (CVE-2025-9181)

    * thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.27, Firefox ESR 128.14, Thunderbird     ESR 128.14, Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142 (CVE-2025-9185)

    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 a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:15434 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * firefox: thunderbird: Denial-of-service due to out-of-memory in the Graphics: WebRender component     (CVE-2025-9182)

    * thunderbird: firefox: Sandbox escape due to invalid pointer in the Audio/Video: GMP component     (CVE-2025-9179)

    * thunderbird: firefox: Same-origin policy bypass in the Graphics: Canvas2D component (CVE-2025-9180)

    * thunderbird: firefox: Uninitialized memory in the JavaScript Engine component (CVE-2025-9181)

    * thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.27, Firefox ESR 128.14, Thunderbird     ESR 128.14, Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142 (CVE-2025-9185)

    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-2025:15535 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Security Fix(es):

    * firefox: thunderbird: Denial-of-service due to out-of-memory in the Graphics: WebRender component     (CVE-2025-9182)

    * thunderbird: firefox: Sandbox escape due to invalid pointer in the Audio/Video: GMP component     (CVE-2025-9179)

    * thunderbird: firefox: Same-origin policy bypass in the Graphics: Canvas2D component (CVE-2025-9180)

    * thunderbird: firefox: Uninitialized memory in the JavaScript Engine component (CVE-2025-9181)

    * thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.27, Firefox ESR 128.14, Thunderbird     ESR 128.14, Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142 (CVE-2025-9185)

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

  - Red Hat Enterprise Linux - thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.27, Firefox     ESR 128.14, Thunderbird ESR 128.14, Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird     142  Ubuntu Linux - Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR     128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. 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 142, Firefox ESR 115.27, Firefox     ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2. (CVE-2025-9185)

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

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0792 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

    CVE-2025-9179:
    An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This     process is also heavily sandboxed, but represents slightly different privileges from the content process.
    This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2,     Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.

    CVE-2025-9180:
    'Same-origin policy bypass in the Graphics: Canvas2D component.' This vulnerability affects Firefox < 142,     Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14,     and Thunderbird < 140.2.

    CVE-2025-9181:
    Uninitialized memory in the JavaScript Engine component. This vulnerability affects Firefox < 142, Firefox     ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.

    CVE-2025-9182:
    'Denial-of-service due to out-of-memory in the Graphics: WebRender component.' This vulnerability affects     Firefox < 142, Firefox ESR < 140.2, Thunderbird < 142, and Thunderbird < 140.2.

    CVE-2025-9185:
    Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR     140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. 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 < 142, Firefox ESR < 115.27, Firefox ESR < 128.14,     Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.

Tenable has extracted the preceding description block directly from the Tencent 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 RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2025:14640 advisory.

    * firefox: thunderbird: Denial-of-service due to out-of-memory in the Graphics: WebRender component     (CVE-2025-9182)

    * thunderbird: firefox: Sandbox escape due to invalid pointer in the Audio/Video: GMP component     (CVE-2025-9179)

    * thunderbird: firefox: Same-origin policy bypass in the Graphics: Canvas2D component (CVE-2025-9180)

    * thunderbird: firefox: Uninitialized memory in the JavaScript Engine component (CVE-2025-9181)

    * thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.27, Firefox ESR 128.14, Thunderbird     ESR 128.14, Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142 (CVE-2025-9185)

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 Ubuntu 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7991-1 advisory.

    Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially     crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of     service, obtain sensitive information, bypass security restrictions, cross-site tracing, or execute     arbitrary code.

Tenable has extracted the preceding description block directly from the Ubuntu 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	Name	Product	Family	Published	Updated	Severity
252322	Mozilla Firefox ESR < 128.14	Nessus	Windows	8/19/2025	11/18/2025	high
258079	AlmaLinux 8 : firefox (ALSA-2025:14442)	Nessus	Alma Linux Local Security Checks	8/28/2025	8/28/2025	high
258082	AlmaLinux 8 : thunderbird (ALSA-2025:14743)	Nessus	Alma Linux Local Security Checks	8/28/2025	8/28/2025	high
253987	Debian dsa-5984 : thunderbird - security update	Nessus	Debian Local Security Checks	8/24/2025	1/21/2026	high
275963	TencentOS Server 4: mozjs (TSSA-2025:0715)	Nessus	Tencent Local Security Checks	11/20/2025	11/20/2025	high
259946	RHEL 8 : thunderbird (RHSA-2025:14743)	Nessus	Red Hat Local Security Checks	8/31/2025	8/31/2025	high
261673	RHEL 8 : firefox (RHSA-2025:15424)	Nessus	Red Hat Local Security Checks	9/8/2025	9/8/2025	high
261697	RHEL 9 : thunderbird (RHSA-2025:15434)	Nessus	Red Hat Local Security Checks	9/8/2025	9/8/2025	high
261830	RHEL 8 : thunderbird (RHSA-2025:15535)	Nessus	Red Hat Local Security Checks	9/9/2025	9/9/2025	high
260110	Linux Distros Unpatched Vulnerability : CVE-2025-9185	Nessus	Misc.	8/31/2025	9/16/2026	high
271119	TencentOS Server 3: firefox (TSSA-2025:0792)	Nessus	Tencent Local Security Checks	10/22/2025	12/4/2025	high
266732	RockyLinux 9 : thunderbird (RLSA-2025:14640)	Nessus	Rocky Linux Local Security Checks	10/6/2025	10/6/2025	high
297659	Ubuntu 22.04 LTS : Thunderbird vulnerabilities (USN-7991-1)	Nessus	Ubuntu Local Security Checks	2/3/2026	2/24/2026	medium

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