Vulnerability intelligence
CVE-2026-94057
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.
CVSS Score
4
Medium
EPSS — Exploit Probability
0.2%
Riskier than 6% of all CVEs · checked 2026-09-21
Exploitation
Not in CISA KEV
KEV does not include every exploited vulnerability
Remediation
unknown
Check vendor advisories
1 article across 1 outlet · first covered Sep 21, 2026 · latest Sep 21, 2026
Coverage timeline
-
Exim Fixes Proxy Protocol Bugs and SMTP Smuggling Flawsecurityonline.info · Sep 21, 2026