CVE-2004-0400

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2004-07-07 · updated 2026-06-16

Description

Stack-based buffer overflow in Exim 4 before 4.33, when the headers_check_syntax option is enabled, allows remote attackers to cause a denial of service and possibly execute arbitrary code during the header check.

Affected products

University of Cambridge Exim: through 4.32

References

http://lists.grok.org.uk/pipermail/full-disclosure/2004-May/021015.html
http://www.debian.org/security/2004/dsa-501
http://www.debian.org/security/2004/dsa-502
http://www.guninski.com/exim1.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/16077
http://lists.grok.org.uk/pipermail/full-disclosure/2004-May/021015.html
http://www.debian.org/security/2004/dsa-501
http://www.debian.org/security/2004/dsa-502
http://www.guninski.com/exim1.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/16077

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