CVE-2020-21688
HIGH8.8EPSS 0.30%Published: 8/10/2021Modified: 4/28/2026
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.
Affected packages (1)
- Debian/ffmpegfrom 0, < 7:4.3.3-0+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |