Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-74953

Privilege escalation in the Networking: Cookies component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 21.9%
CVSS Severity
CVSS v3 Score 8.8
Products affected by CVE-2026-74953


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