CVE-2009-3996: Nullsoft Winamp

High severity, CVSS 9.3. EPSS: 6.5% chance of exploitation in the next 30 days.

Heap-based buffer overflow in IN_MOD.DLL (aka the Module Decoder Plug-in) in Winamp before 5.57, and libmikmod 3.1.12, might allow remote attackers to execute arbitrary code via an Ultratracker file.

Affected products

• Nullsoft Winamp: up to and including 5.56; version 0.20a only; version 0.92 only; version 1.006 only; version 1.90 only; version 2.0 only; …
• Raphael Assenat Libmikmod: version 3.1.12 only

Published 2009-12-18. Last modified 2026-06-16.