VulnerabilityModified
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.
HIGH 8.8EPSS 1.73%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.73%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.73% probability · 76th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- ffmpeg/ffmpeg · debian/debian linux
- Source
- cve@mitre.org
References
- https://trac.ffmpeg.org/ticket/8186Exploit, Issue Tracking, Patch, Vendor Advisory
- https://www.debian.org/security/2021/dsa-4998Third Party Advisory
- https://trac.ffmpeg.org/ticket/8186Exploit, Issue Tracking, Patch, Vendor Advisory
- https://www.debian.org/security/2021/dsa-4998Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.