CVE-2020-12284

PoC —

CVSS 3.1

9.8 critical

EPSS

4%p90

Published

Apr 28, 2020 (Apr 28, 2020)

Modified

Jun 17, 2026

Description

cbs_jpeg_split_fragment in libavcodec/cbs_jpeg.c in FFmpeg 4.1 and 4.2.2 has a heap-based buffer overflow during JPEG_MARKER_SOS handling because of a missing length check.

Vendors: ffmpeg canonical debian
Products: ffmpeg, ubuntu linux, debian linux
Weakness: CWE-787
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (3.9%)

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