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 Details
- CVSS 3.1 Base Score: 5.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade exim4 | Sep 30, 2026 | Sep 19, 2026 |
| Exim | — | Upgrade Exim to version 4.100.1 | Sep 25, 2026 | Sep 19, 2026 |
| Ubuntu | — | Upgrade exim4 | Sep 28, 2026 | Sep 28, 2026 |
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