Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, allows attackers to read certain uninitialized data from stack memory.

Project Subscriptions

Vendors Products
Advisories
Source ID Title
Debian DSA Debian DSA DSA-6522-1 exim4 security update
Ubuntu USN Ubuntu USN USN-8834-1 Exim vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 21 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Sun, 20 Sep 2026 00:45:00 +0000

Type Values Removed Values Added
Title Exim Proxy-Protocol Stack Unintended Data Disclosure

Sat, 19 Sep 2026 23:00:00 +0000

Type Values Removed Values Added
Description Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, allows attackers to read certain uninitialized data from stack memory.
First Time appeared Exim
Exim exim
Weaknesses CWE-908
CPEs cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*
Vendors & Products Exim
Exim exim
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-21T18:32:49.509Z

Reserved: 2026-09-19T22:52:43.235Z

Link: CVE-2026-94056

cve-icon Vulnrichment

Updated: 2026-09-21T18:32:39.373Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-19T23:17:11.113

Modified: 2026-09-24T20:45:30.120

Link: CVE-2026-94056

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-20T00:45:16Z

Weaknesses