CVE-2026-66141 | Exim before 4.99.5 allows .forward privilege escalation beca… | CVSS 7.4 HIGH

Description

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

CVE ID: CVE-2026-66141
State: PUBLISHED
Assigner: mitre
Reserved: 2026-07-24 04:37 UTC
Published: 2026-07-24 04:37 UTC
Last updated: 2026-07-24 04:37 UTC
Primary CWE: CWE-829
CWE-829 Inclusion of Functionality from Untrusted Control Sp…
Vendor / Product: Exim / Exim
Sources: cve.org · NVD

7.4 HIGH CVSS 3.1

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products (1)

Vendor	Product	Platform	Versions
Exim	Exim	—	4.82 < 4.99.5

Weakness (CWE)

CWE	Source	Description
CWE-829	cna	CWE-829 Inclusion of Functionality from Untrusted Control Sphere

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.4	HIGH	3.1	cna	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References (1)