๐Ÿ” CVE Alert

CVE-2026-94056

HIGH 7.5
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-908
Vendor exim
Product exim
Published Sep 19, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:L
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
Low

Affected Versions

Exim / Exim
4.83 < 4.100.1

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
lists.exim.org: https://lists.exim.org/lurker/message/20260918.121220.0f87338e.en.html