CyberRota Analysis
This is a critical severity vulnerability with a CVSS score of 9.8. It affects Firefox. Public exploit code or proof-of-concept references have been detected in its references.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Detected Signals
exploit
Note: these links are listed for security research and verification purposes only.
CVE
CVE-2025-6424
Severity
CRITICAL
CVSS
9.8
EPSS
3.19%
Firefox
Original NVD Description
A use-after-free in FontFaceSet resulted in a potentially exploitable crash. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12.
Related CVEs
Other vulnerabilities affecting the same vendor(s)