CVE-2021-33815

8.8 highEPSS 1.4%

High (8.8) in ffmpeg ffmpeg. EPSS 1.4% chance of exploitation in the next 30 days.

dwa_uncompress in libavcodec/exr.c in FFmpeg 4.4 allows an out-of-bounds array access because dc_count is not strictly checked.

Severity

8.8 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 1.4% chance of exploitation in the next 30 days; higher than 71% of CVEs (scores of 2026-11-01)
CWE: CWE-129
Published: 2021-06-03
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19