FFmpeg version (git commit de8e6e67e7523e48bb27ac224a0b446df05e1640) suffers from a an…
Priority LOW 38CWE-617Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-617.
Summary
FFmpeg version (git commit de8e6e67e7523e48bb27ac224a0b446df05e1640) suffers from a an assertion failure at src/libavutil/mathematics.c.
Why it matters now
EPSS 0.0269 85th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:* | before 4.1.7; 4.2.0 to before 4.2.5; 4.3.0 to before 4.3.3; 4.4.0 to before 4.4.1 | Vulnerable | FFmpeg |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable | Debian |
- cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:* Versions before 4.1.7; 4.2.0 to before 4.2.5; 4.3.0 to before 4.3.3; 4.4.0 to before 4.4.1 Vulnerable ·FFmpeg
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-38291
- 2026-10-03 Alias added: GHSA-4525-66vv-3hwf
References
Sources
- CVE-2021-38291 · CVE Program
- CVE-2021-38291 · NVD
- FIRST EPSS
- GHSA-4525-66vv-3hwf · GitHub Advisory Database · CC BY 4.0
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