CVE-2015-6823: Ffmpeg

High severity, CVSS 7.5. EPSS: 2.4% chance of exploitation in the next 30 days.

The allocate_buffers function in libavcodec/alac.c in FFmpeg before 2.7.2 does not initialize certain context data, which allows remote attackers to cause a denial of service (segmentation violation) or possibly have unspecified other impact via crafted Apple Lossless Audio Codec (ALAC) data.

Affected products

• Ffmpeg Ffmpeg: up to and including 2.7.1

Published 2015-09-06. Last modified 2026-06-17.