Use-After-Free Vulnerability in Firefox Affects Mozilla Products

CVE-2025-6424

What is CVE-2025-6424?

A use-after-free vulnerability has been identified in the FontFaceSet component of the Firefox web browser, which may result in a crash that could potentially be exploited. This flaw affects multiple versions of Firefox, including those before version 140, as well as certain extended support releases. Users of the affected versions should be aware of the potential risks and update to patched releases to ensure their security.

References