CVE-2001-0280: Atrium Software Mercur

High severity, CVSS 10.0. EPSS: 13% chance of exploitation in the next 30 days.

Buffer overflow in MERCUR SMTP server 3.30 allows remote attackers to execute arbitrary commands via a long EXPN command.

Affected products

• Atrium Software Mercur: any version

Published 2001-05-03. Last modified 2026-06-16.