CVE-2026-66141

HIGH

Exim < 4.99.5 - Inclusion of Functionality from Untrusted Control Sphere

Title source: rule
STIX 2.1

Description

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

References (1)

Core 1

Scores

CVSS v3 7.4
EPSS 0.0010
EPSS Percentile 1.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-829
Status published
Products (1)
Exim/Exim 4.82 - 4.99.5
Published Jul 24, 2026
Tracked Since Jul 24, 2026