Use-after-free in the Layout: Scrolling and Overflow component. This vulnerability affects Firefox < 147.0.2.

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

  - Use-after-free in the Layout: Scrolling and Overflow component. This vulnerability affects Firefox <     147.0.2. (CVE-2026-24869)

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

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 9dac4f05-fc65-11f0-96db-b42e991fc52e advisory.

    https://bugzilla.mozilla.org/show_bug.cgi?id=2007302 reports:
    Mitigation bypass in the Privacy: Anti-Tracking component.
    Use-after-free in the Layout: Scrolling and Overflow 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 version of Firefox installed on the remote macOS or Mac OS X host is prior to 147.0.2. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-06 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 Firefox installed on the remote Windows host is prior to 147.0.2. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-06 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	Severity
297406	Linux Distros Unpatched Vulnerability : CVE-2026-24869	Nessus	Misc.	high
297124	FreeBSD : Firefox -- Multiple vulnerabilities (9dac4f05-fc65-11f0-96db-b42e991fc52e)	Nessus	FreeBSD Local Security Checks	high
296907	Mozilla Firefox < 147.0.2	Nessus	MacOS X Local Security Checks	high
296906	Mozilla Firefox < 147.0.2	Nessus	Windows	high

Detections

Analytics

CVE-2026-24869

high

Tenable Plugins

high

high

high

high