CVE-2026-94057CWE-93

CVE-2026-94057

Medium · published September 20, 2026

CVSS v3.1
4.0
EPSS
0%
Percentile
8.9
In the wild
Unconfirmed
What it is

Exim before 4.100.1 allows SMTP smuggling in which the received message does not match any sent message, and instead depends on crafted data sent after a rejection during DATA processing.

The record
Technical detail
CVSS v3.1
4.0 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00197 · 8.9th percentile
Weakness
CWE-93 · Improper Neutralization of CRLF Sequences ('CRLF Injection')
Published
2026-09-20T03:17Z
Affected products (1)
ProductVersionsFixed in
exim/exim< 4.100.14.100.1
References (1)
https://lists.exim.org/lurker/message/20260918.121220.0f87338e.en.html · [email protected]
EPSS history
Timeline
  • 21 SEP 03:37Z
    EPSS moved — → 0%
    epss
  • 19 SEP 22:55Z
    Exim before 4.100.1 allows SMTP smuggling in which the received message does not match any sent message, and instead depends on crafted data sent after a…
    cvelistv5