CVE-2001-0819: Fetchmail

High severity, CVSS 7.5. EPSS: 6.4% chance of exploitation in the next 30 days.

A buffer overflow in Linux fetchmail before 5.8.6 allows remote attackers to execute arbitrary code via a large 'To:' field in an email header.

Affected products

• Fetchmail Fetchmail: up to and including 5.8.5; version 4.5.1 only; version 4.5.2 only; version 4.5.3 only; version 4.5.4 only; version 4.5.5 only; …

Published 2001-12-06. Last modified 2026-06-16.