The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 142.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-70 advisory.

  - Memory safety bugs present in 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-2025-9187)

  - 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)

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

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 macOS or Mac OS X host is prior to 140.2. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-67 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)

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

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.

  - Denial-of-service due to out-of-memory in the Graphics: WebRender component. This vulnerability was fixed     in Firefox 142, Firefox ESR 140.2, Thunderbird 142, and Thunderbird 140.2. (CVE-2025-9182)

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

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987444 advisory.

    '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.

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

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

The remote Oracle Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2025-15430 advisory.

    [128.14.0-2.0.1]
    - Update to 128.14.0 [Orabug: 38400668][CVE-2025-9179][CVE-2025-9180]       [CVE-2025-9181][CVE-2025-9182][CVE-2025-9185]

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 remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2025:14417 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 AlmaLinux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2025:14417 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 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-2025:0800 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 AlmaLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-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 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 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:14844 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 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2025:15420 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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1171 advisory.

    Improper Input Validation vulnerability in Mozilla neqo leads to an unexploitable crash..This issue     affects neqo: from 0.4.24 through 0.13.2. (CVE-2025-6703)

    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-2025-9179)

    '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-2025-9180)

    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-2025-9181)

    '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-2025-9182)

    Spoofing issue in the Address Bar component. This vulnerability affects Firefox < 142 and Firefox ESR <     140.2. (CVE-2025-9183)

    Memory safety bugs present in 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 < 140.2, Thunderbird < 142, and Thunderbird < 140.2. (CVE-2025-9184)

    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-2025-9185)

Tenable has extracted the preceding description block directly from the tested product 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 Thunderbird installed on the remote Windows host is prior to 142.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-70 advisory.

  - Memory safety bugs present in 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-2025-9187)

  - 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)

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

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 142.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-64 advisory.

  - Memory safety bugs present in 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-2025-9187)

  - 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)

  - Spoofing issue in the Address Bar component of Firefox Focus for Android. (CVE-2025-9186)

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
252313	Mozilla Thunderbird < 142.0	Nessus	MacOS X Local Security Checks	8/19/2025	1/21/2026	critical
252314	Mozilla Firefox ESR < 140.2	Nessus	MacOS X Local Security Checks	8/19/2025	11/18/2025	high
260170	Linux Distros Unpatched Vulnerability : CVE-2025-9182	Nessus	Misc.	9/1/2025	4/16/2026	high
269073	Unity Linux 20.1070a Security Update: firefox (UTSA-2025-987444)	Nessus	Unity Linux Local Security Checks	10/7/2025	10/10/2025	high
265766	Oracle Linux 7 : firefox (ELSA-2025-15430)	Nessus	Oracle Linux Local Security Checks	9/24/2025	9/24/2025	high
266640	RockyLinux 10 : firefox (RLSA-2025:14417)	Nessus	Rocky Linux Local Security Checks	10/6/2025	10/6/2025	high
269875	AlmaLinux 10 : firefox (ALSA-2025:14417)	Nessus	Alma Linux Local Security Checks	10/9/2025	10/9/2025	high
271148	TencentOS Server 3: thunderbird (TSSA-2025:0800)	Nessus	Tencent Local Security Checks	10/22/2025	12/4/2025	high
258112	AlmaLinux 9 : thunderbird (ALSA-2025:14640)	Nessus	Alma Linux Local Security Checks	8/29/2025	8/29/2025	high
260051	RHEL 10 : thunderbird (RHSA-2025:14844)	Nessus	Red Hat Local Security Checks	8/31/2025	8/31/2025	high
261668	RHEL 9 : firefox (RHSA-2025:15420)	Nessus	Red Hat Local Security Checks	9/8/2025	9/8/2025	high
261736	Amazon Linux 2023 : firefox (ALAS2023-2025-1171)	Nessus	Amazon Linux Local Security Checks	9/8/2025	10/29/2025	low
252312	Mozilla Thunderbird < 142.0	Nessus	Windows	8/19/2025	1/21/2026	critical
252320	Mozilla Firefox < 142.0	Nessus	MacOS X Local Security Checks	8/19/2025	11/18/2025	critical

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