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Servers and applications

CVE-2020-21697

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.

Severity
Medium 6.5
Published
10 Aug 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
FFmpegServers and applications · cpe:a:ffmpeg:ffmpeg
  • Version 4.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-21697
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-21697