Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-0879

Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 6.6%
CVSS Severity
CVSS v3 Score 9.8
Products affected by CVE-2026-0879


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