Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-8958

Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 26.5%
CVSS Severity
CVSS v3 Score 8.6
Products affected by CVE-2026-8958


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