CVE-2026-94056

high

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.

References

https://lists.exim.org/lurker/message/20260918.121220.0f87338e.en.html

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-83614

Details

Source: Mitre, NVD

Published: 2026-09-19

Updated: 2026-09-24

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N