CVE-2026-94056

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://lists.exim.org/lurker/message/20260918.121220.0f87338e.en.html	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*

History

24 Sep 2026, 20:45

Type	Values Removed	Values Added
First Time		Exim exim Exim
References	~~() https://lists.exim.org/lurker/message/20260918.121220.0f87338e.en.html -~~	() https://lists.exim.org/lurker/message/20260918.121220.0f87338e.en.html - Vendor Advisory
CPE		cpe:2.3:a:exim:exim::::::::

19 Sep 2026, 23:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-19 23:17

Updated : 2026-09-24 20:45

NVD link : CVE-2026-94056

Mitre link : CVE-2026-94056

CVE.ORG link : CVE-2026-94056

JSON object : View

Products Affected

exim

exim

CWE

CWE-908

Use of Uninitialized Resource

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