CVE-2017-9991: Ffmpeg

High severity, CVSS 7.8. EPSS: 1.8% chance of exploitation in the next 30 days.

Heap-based buffer overflow in the xwd_decode_frame function in libavcodec/xwddec.c in FFmpeg before 2.8.12, 3.0.x before 3.0.8, 3.1.x before 3.1.8, 3.2.x before 3.2.5, and 3.3.x before 3.3.1 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted file.

Affected products

• Ffmpeg Ffmpeg: up to and including 2.8.11; version 3.0 only; version 3.0.1 only; version 3.0.2 only; version 3.0.3 only; version 3.0.4 only; …

Published 2017-06-28. Last modified 2026-06-17.