CVE-2002-1174: Fetchmail

High severity, CVSS 7.5. EPSS: 4.7% chance of exploitation in the next 30 days.

Buffer overflows in Fetchmail 6.0.0 and earlier allow remote attackers to cause a denial of service (crash) or execute arbitrary code via (1) long headers that are not properly processed by the readheaders function, or (2) via long Received: headers, which are not properly parsed by the parse_received function.

Affected products

• Fetchmail Fetchmail: up to and including 6.0.0; 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 2002-10-11. Last modified 2026-06-16.