Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-43964

Postfix before 3.8.16, 3.9 before 3.9.10, and 3.10 before 3.10.9 sometimes allows a buffer over-read and process crash via an enhanced status code that lacks text after the third number.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 23.0%
CVSS Severity
CVSS v3 Score 3.7
Products affected by CVE-2026-43964


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