VULNERABILITY INTELLIGENCE

CVE-2020-21697

CVSS score6.5 MEDIUM

EPSS probability0.92%

CISA KEVNot currently listed

Published2021-08-10

Last modified2026-06-17

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

Description

A heap-use-after-free in the mpeg_mux_write_packet function in libavformat/mpegenc.c of FFmpeg 4.2 allows to cause a denial of service (DOS) via a crafted avi file.

Weakness classification

nvd@nist.gov: CWE-416

Primary references

cve@mitre.org — Exploit, Issue Tracking, Patch, Vendor Advisory
cve@mitre.org — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory