CVE-1999-0393

MEDIUM 5.0CVE-1999-0393 · Published 01/01/1999 · updated 16/06/2026

In short

CVE-1999-0393 is a MEDIUM (CVSS 5.0) vulnerability affecting sendmail (eric allman).
Chance of exploitation in the next 30 days (EPSS): 2.4%, higher than 84.2% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
sendmail eric_allman	`= 8.8= 8.9.2`	No fix yet

Remote attackers can cause a denial of service in Sendmail 8.8.x and 8.9.2 by sending messages with a large number of headers.

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