CVE-2005-2151: Double Precision Incorporated Courier Mail Server

Medium severity, CVSS 5.0. EPSS: 0.9% chance of exploitation in the next 30 days.

spf.c in Courier Mail Server does not properly handle DNS failures when looking up Sender Policy Framework (SPF) records, which could allow attackers to cause memory corruption.

Affected products

• Double Precision Incorporated Courier Mail Server: version 0.46 only; version 0.47 only; version 0.48 only; version 0.48.1 only; version 0.48.2 only; version 0.49.0 only; …

Published 2005-07-06. Last modified 2026-06-16.