CVE-2009-3997: Nullsoft Winamp

High severity, CVSS 9.3. EPSS: 5.7% chance of exploitation in the next 30 days.

Integer overflow in IN_MOD.DLL (aka the Module Decoder Plug-in) in Winamp before 5.57 might allow remote attackers to execute arbitrary code via an Oktalyzer file that triggers a heap-based buffer overflow.

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; …

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