CVE-2026-94057
Medium
Description
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.
SeverityMedium
CVSS4.0
Exploit probability—
Product
Exim
PublishedSep 19, 2026
First seenSep 19, 2026
Weakness typeCWE-93CWE-93
How to fix
Update
- exim exim4.100.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| exim exim | v < 4.100.1 | 4.100.1 |
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