CVE-2021-38291
HIGHCVSS 7.5/10EPSS 2.69%
Last modified
CVE-2021-38291 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. FFmpeg version (git commit de8e6e67e7523e48bb27ac224a0b446df05e1640) suffers from a an assertion failure at src/libavutil/mathematics.c.. EPSS estimates a 2.69% chance of exploitation in the next 30 days.
Description
FFmpeg version (git commit de8e6e67e7523e48bb27ac224a0b446df05e1640) suffers from a an assertion failure at src/libavutil/mathematics.c.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ffmpeg | Ffmpeg | < 4.1.7 |
| Ffmpeg | Ffmpeg | >= 4.2.0, < 4.2.5 |
| Ffmpeg | Ffmpeg | >= 4.3.0, < 4.3.3 |
| Ffmpeg | Ffmpeg | >= 4.4.0, < 4.4.1 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
| Debian | Debian Linux | 11.0 |
References
- https://lists.debian.org/debian-lts-announce/2021/11/msg00012.htmlMailing List, Third Party Advisory
- https://trac.ffmpeg.org/ticket/9312Exploit, Patch, Vendor Advisory
- https://www.debian.org/security/2021/dsa-4990Third Party Advisory
- https://www.debian.org/security/2021/dsa-4998Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00012.htmlMailing List, Third Party Advisory
- https://trac.ffmpeg.org/ticket/9312Exploit, Patch, Vendor Advisory
- https://www.debian.org/security/2021/dsa-4990Third Party Advisory
- https://www.debian.org/security/2021/dsa-4998Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-38291?
FFmpeg version (git commit de8e6e67e7523e48bb27ac224a0b446df05e1640) suffers from a an assertion failure at src/libavutil/mathematics.c.
How severe is CVE-2021-38291?
CVE-2021-38291 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.69% probability of exploitation in the next 30 days.
How do I fix CVE-2021-38291?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-38291?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST