Memory safety bugs present in Firefox 152.0.3. 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 152.0.4.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-410580270b advisory.

    - Updated to latest upstream (152.0.4)

    ----

    Update to latest upstream version

Tenable has extracted the preceding description block directly from the Fedora 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 version of Firefox installed on the remote Windows host is prior to 152.0.4. It is, therefore, affected by a vulnerability as referenced in the mfsa2026-62 advisory.

  - Memory safety bugs present in Firefox 152.0.3. 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-2026-14241)

Note that Nessus has not tested for this issue 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 152.0.4. It is, therefore, affected by a vulnerability as referenced in the mfsa2026-62 advisory.

  - Memory safety bugs present in Firefox 152.0.3. 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-2026-14241)

Note that Nessus has not tested for this issue 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.

  - Memory safety bugs present in Firefox 152.0.3. 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 152.0.4. (CVE-2026-14241)

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

ID	Name	Product	Family	Severity
325610	Fedora 43 : firefox (2026-410580270b)	Nessus	Fedora Local Security Checks	critical
324879	Mozilla Firefox < 152.0.4	Nessus	Windows	critical
324878	Mozilla Firefox < 152.0.4	Nessus	MacOS X Local Security Checks	critical
324675	Linux Distros Unpatched Vulnerability : CVE-2026-14241	Nessus	Misc.	critical

Detections

Analytics

CVE-2026-14241

critical

Tenable Plugins

critical

critical

critical

critical