Description
Exim before 4.99.5 allows directory traversal to access files outside of the spool area, and consequently gain privileges, because arguments related to queue-name are mishandled.
Published: 2026-07-24
Score: 8.4 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-6400-1 exim4 security update
History

Wed, 29 Jul 2026 00:15:00 +0000

Type Values Removed Values Added
Title Directory Traversal Exploiting Queue-Name Argument in Exim exim: Exim: Privilege escalation via directory traversal due to mishandled queue-name arguments
Weaknesses CWE-22
References
Metrics threat_severity

None

threat_severity

Important


Sun, 26 Jul 2026 04:15:00 +0000

Type Values Removed Values Added
Title Directory Traversal Exploiting Queue-Name Argument in Exim

Fri, 24 Jul 2026 18:30:00 +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 directory traversal to access files outside of the spool area, and consequently gain privileges, because arguments related to queue-name are mishandled.
First Time appeared Exim
Exim exim
Weaknesses CWE-24
CPEs cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*
Vendors & Products Exim
Exim exim
References
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-07-24T12:25:04.081Z

Reserved: 2026-07-24T04:32:08.386Z

Link: CVE-2026-66140

cve-icon Vulnrichment

Updated: 2026-07-24T12:24:58.773Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Important

Publid Date: 2026-07-24T04:32:08Z

Links: CVE-2026-66140 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-07-26T04:00:05Z

Weaknesses
  • CWE-22

    Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

  • CWE-24

    Path Traversal: '../filedir'