CVE-2026-66141

State: Published
Severity: 7.4 High
Published: Jul 24, 2026
Updated: Jul 24, 2026
Reserved: Jul 24, 2026

Description

Exim before 4.99.5 allows .forward privilege escalation because force_command for a pipe transport is mishandled.

Scores

CVSS	Score	Vector	Source
3.1	7.4 High	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	mitre

Weaknesses

CWE-829 Inclusion of Functionality from Untrusted Control Sphere

Affected Products

Product	Versions
EximExim	4.82 to before 4.99.5Affected

References

https://openwall.com/lists/oss-security/2026/07/22/9

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