CVE-2009-4634: Ffmpeg

High severity, CVSS 10.0. EPSS: 7.2% chance of exploitation in the next 30 days.

Multiple integer underflows in FFmpeg 0.5 allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that (1) bypasses a validation check in vorbis_dec.c and triggers a wraparound of the stack pointer, or (2) access a pointer from out-of-bounds memory in mov.c, related to an elst tag that appears before a tag that creates a stream.

Affected products

• Ffmpeg Ffmpeg: version 0.5 only

Published 2010-02-10. Last modified 2026-06-16.