Mozilla · Firefox · CVE-2025-6424
Name of the Vulnerable Software and Affected Versions:
Firefox versions prior to 140
Firefox ESR versions prior to 115.25
Firefox ESR versions prior to 128.12
Description:
A use-after-free in FontFaceSet resulted in a potentially exploitable crash.
Recommendations:
For Firefox versions prior to 140, update to version 140 or later.
For Firefox ESR versions prior to 115.25, update to version 115.25 or later.
For Firefox ESR versions prior to 128.12, update to version 128.12 or later.