CVE-2003-0299: Mutt

High severity, CVSS 7.5. EPSS: 2.1% chance of exploitation in the next 30 days.

The IMAP Client, as used in mutt 1.4.1 and Balsa 2.0.10, allows remote malicious IMAP servers to cause a denial of service and possibly execute arbitrary code via certain large mailbox size values that cause either integer signedness errors or integer overflow errors.

Affected products

• Mutt Mutt: version 1.4.1 only
• Stuart Parmenter Balsa: version 2.0.10 only

Published 2003-06-16. Last modified 2026-06-16.