CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 6.5. 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-2023-4577
Severity
MEDIUM
CVSS
6.5
EPSS
0.64%
Firefox
Original NVD Description
When `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Related CVEs
Other vulnerabilities affecting the same vendor(s)