CVE-2011-3834: Nullsoft Winamp

High severity, CVSS 9.3. EPSS: 5.1% chance of exploitation in the next 30 days.

Multiple integer overflows in the in_avi.dll plugin in Winamp before 5.623 allow remote attackers to execute arbitrary code via an AVI file with a crafted value for (1) the number of streams or (2) the size of the RIFF INFO chunk, leading to a heap-based buffer overflow.

Affected products

• Nullsoft Winamp: up to and including 5.622; version 0.20a only; version 0.92 only; version 1.006 only; version 1.90 only; version 2.0 only; …

Published 2011-12-16. Last modified 2026-06-16.