CVE-2020-21688

A heap-use-after-free in the av_freep function in libavutil/mem.c of FFmpeg 4.2 allows attackers to execute arbitrary code.

CVSS v3.1

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

CVSS v2.0

6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS

1.73% chance of exploitation in the next 30 days, 76th percentile

Published

2021-08-10

Updated

2024-08-04

Proof-of-concept exploits (1)

• https://trac.ffmpeg.org/ticket/8186

References

• CVE Record
• NVD entry

Related

• CVE-2020-21684
• CVE-2020-21697
• CVE-2020-21683
• CVE-2020-21710
• CVE-2020-21682
• CVE-2020-21724