CVE-2004-1291: Amir Malik Qwik Smtpd

High severity, CVSS 7.5. EPSS: 2.5% chance of exploitation in the next 30 days.

Buffer overflow in qwik-smtpd allows remote attackers to use the server as an SMTP spam relay via a long HELO command, which overwrites the adjacent localIP data buffer.

Affected products

Published 2005-01-10. Last modified 2026-06-16.