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vulnerability

Exim: CVE-2025-67896: Heap-based Buffer Overflow

Severity
8
CVSS
(AV:N/AC:M/Au:N/C:P/I:C/A:P)
Published
Dec 14, 2025
Added
Apr 7, 2026
Modified
Jun 9, 2026

Description

Exim before 4.99.1, with certain non-default rate-limit configurations, allows a remote heap-based buffer overflow because database records are cast directly to internal structures without validation.

Solution

exim-upgrade-latest
Title
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