CVE-2004-1638

High severity, CVSS 7.5. EPSS: 62.8% chance of exploitation in the next 30 days.

Buffer overflow in MailCarrier 2.51 allows remote attackers to execute arbitrary code via a long (1) EHLO and possibly (2) HELO command.

Published 2004-10-16. Last modified 2026-06-16.