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Security Advisories

CVE-2023-51766

NVD

https://nvd.nist.gov/vuln/detail/CVE-2023-51766

Severity

5.3

Medium

CVSS V3

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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.

References

Affected packages

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