CVE-2006-0321: Fetchmail

Medium severity, CVSS 5.0. EPSS: 3.5% chance of exploitation in the next 30 days.

fetchmail 6.3.0 and other versions before 6.3.2 allows remote attackers to cause a denial of service (crash) via crafted e-mail messages that cause a free of an invalid pointer when fetchmail bounces the message to the originator or local postmaster.

Affected products

• Fetchmail Fetchmail: version 6.3.0 only; version 6.3.1 only

Published 2006-01-24. Last modified 2026-06-16.