CVE-2010-1192: Stafford.uklinux Libesmtp

Medium severity, CVSS 6.8. EPSS: 0.9% chance of exploitation in the next 30 days.

libESMTP, probably 1.0.4 and earlier, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Affected products

• Stafford.uklinux Libesmtp: up to and including 1.0.4; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …

Published 2010-03-31. Last modified 2026-06-16.