CVE-2004-0777: INTER7 Courier-Imap

High severity, CVSS 7.5. EPSS: 10.9% chance of exploitation in the next 30 days.

Format string vulnerability in the auth_debug function in Courier-IMAP 1.6.0 through 2.2.1 and 3.x through 3.0.3, when login debugging (DEBUG_LOGIN) is enabled, allows remote attackers to execute arbitrary code.

Affected products

• INTER7 Courier-Imap: version 1.6 only; version 1.7 only; version 2.0.0 only; version 2.1 only; version 2.1.1 only; version 2.1.2 only; …

Published 2004-10-20. Last modified 2026-06-16.