The version of Firefox installed on the remote macOS or Mac OS X host is prior to 145.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-87 advisory.

  - Memory safety bugs present in Firefox 144 and Thunderbird 144. 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-2025-13027)

  - Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability affects Firefox < 145.
    (CVE-2025-13021, CVE-2025-13022, CVE-2025-13025)

  - Race condition in the Graphics component. This vulnerability affects Firefox < 145, Firefox ESR < 140.5,     and Firefox ESR < 115.30. (CVE-2025-13012)

  - Sandbox escape due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability     affects Firefox < 145. (CVE-2025-13023, CVE-2025-13026)

  - Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability affects Firefox     < 145 and Firefox ESR < 140.5. (CVE-2025-13016)

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.

  - Sandbox escape due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability     affects Firefox < 145. (CVE-2025-13026)

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

The version of Firefox installed on the remote Windows host is prior to 145.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2025-87 advisory.

  - Memory safety bugs present in Firefox 144 and Thunderbird 144. 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-2025-13027)

  - Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability affects Firefox < 145.
    (CVE-2025-13021, CVE-2025-13022, CVE-2025-13025)

  - Race condition in the Graphics component. This vulnerability affects Firefox < 145, Firefox ESR < 140.5,     and Firefox ESR < 115.30. (CVE-2025-13012)

  - Sandbox escape due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability     affects Firefox < 145. (CVE-2025-13023, CVE-2025-13026)

  - Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability affects Firefox     < 145 and Firefox ESR < 140.5. (CVE-2025-13016)

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

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-2d9e01e0fc advisory.

    - Updated to latest upstream (145.0)

Tenable has extracted the preceding description block directly from the Fedora 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 Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-457ee8a964 advisory.

    - Updated to latest upstream (145.0)

Tenable has extracted the preceding description block directly from the Fedora 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
274833	Mozilla Firefox < 145.0	Nessus	MacOS X Local Security Checks	11/11/2025	11/11/2025	critical
275017	Linux Distros Unpatched Vulnerability : CVE-2025-13026	Nessus	Misc.	11/12/2025	11/12/2025	medium
274834	Mozilla Firefox < 145.0	Nessus	Windows	11/11/2025	11/11/2025	critical
275255	Fedora 43 : firefox (2025-2d9e01e0fc)	Nessus	Fedora Local Security Checks	11/12/2025	11/12/2025	critical
275384	Fedora 42 : firefox (2025-457ee8a964)	Nessus	Fedora Local Security Checks	11/13/2025	11/13/2025	critical

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