Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-92238

A maliciously constructed mail header could lead to multiple fields being parsed as one, or potential memory safety violations. This vulnerability was fixed in Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 46.7%
CVSS Severity
CVSS v3 Score 9.8
Products affected by CVE-2026-92238


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