Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-74979

Mitigation bypass in the Add-ons Manager component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 42.2%
CVSS Severity
CVSS v3 Score 9.8
Products affected by CVE-2026-74979


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