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

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Vendors Products
Advisories
Source ID Title
Debian DSA Debian DSA DSA-6400-1 exim4 security update
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 27 Jul 2026 07:00:00 +0000

Type Values Removed Values Added
Title Privilege Escalation via .forward File in Exim before 4.99.5

Fri, 24 Jul 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 24 Jul 2026 04:45:00 +0000

Type Values Removed Values Added
Description Exim before 4.99.5 allows .forward privilege escalation because force_command for a pipe transport is mishandled.
First Time appeared Exim
Exim exim
Weaknesses CWE-829
CPEs cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*
Vendors & Products Exim
Exim exim
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-07-24T18:42:19.559Z

Reserved: 2026-07-24T04:37:45.699Z

Link: CVE-2026-66141

cve-icon Vulnrichment

Updated: 2026-07-24T18:42:13.349Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-27T06:45:03Z

Weaknesses