VDB
DEBIAN-CVE-2023-51765
DEBIAN-CVE-2023-51765
PUBLISHED
CVSS 5.300000190734863 MEDIUM
sendmail through 8.17.2 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because sendmail supports <LF>.<CR><LF> but some other popular e-mail servers do not. This is resolved in 8.18 and later versions with 'o' in srv_features.
Risk Scores
CVSS 3.1
5.300000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | sendmail | 8.15.2-22, 0, 8.15.2-22 |
| Debian:12 | sendmail | 0, 8.17.1.9-2, 0 |
| Debian:13 | sendmail | 0, 0, 0 |
| Debian:14 | sendmail | 0, 0, 0 |
Timeline
- Dec 24, 2023 CVE Published
- Apr 28, 2026 CVE Updated