CyberRota Analysis
This is a critical severity vulnerability with a CVSS score of 9.1. It affects Firefox. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 17.5% probability of exploitation in the next 30 days.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
An out-of-bounds read during the processing of glyph widths during text layout. This results in a potentially exploitable crash and could allow an attacker to read otherwise inaccessible memory. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.
Related CVEs
Other vulnerabilities affecting the same vendor(s)