CVE-2020-21697 is a heap-use-after-free vulnerability in FFmpeg version 4.2, specifically within the mpeg_mux_write_packet function, affecting Debian and FFmpeg products. This flaw can lead to a denial of service (DoS) when processing a specially crafted AVI file. With a CVSS score of 6.5 (Medium), it requires user interaction (UI:R) and can be triggered remotely over a network (AV:N), but has low attack complexity (AC:L). There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
4.2CPE matchmatch criteria | cpe:2.3:a:ffmpeg:ffmpeg:4.2:-:*:*:*:*:*:* | ||
11.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.