Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-2766

Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 37.1%
CVSS Severity
CVSS v3 Score 9.8
References
Products affected by CVE-2026-2766


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