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CVE-2023-51766

PoC —
CVSS 3.1
5.3 medium
EPSS
1%p64
Published
()
Modified
Description

Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING 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 Exim supports . but some other popular e-mail servers do not.

Vendors
eximfedoraprojectdebian
Products
exim, extra packages for enterprise linux, fedora, debian linux
Weakness
CWE-345
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD CVE.org GitHub PoCs EPSS (1.1%)

In the news

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