CVE-2008-2711: Fetchmail

Medium severity, CVSS 4.3. EPSS: 3% chance of exploitation in the next 30 days.

fetchmail 6.3.8 and earlier, when running in -v -v (aka verbose) mode, allows remote attackers to cause a denial of service (crash and persistent mail failure) via a malformed mail message with long headers, which triggers an erroneous dereference when using vsnprintf to format log messages.

Affected products

• Fetchmail Fetchmail: up to and including 6.3.8; 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 2008-06-16. Last modified 2026-06-16.