Vulnerability · Published Jan 6, 2025 · Assigned by fedora
CVE-2023-6601Ffmpeg: hls unsafe file extension bypass in ffmpeg
Medium 4.7
In plain English
A medium-severity code injection in FFmpeg. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.7Medium
Exploit odds (30 days)0.4%top 63.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A flaw was found in FFmpeg's HLS demuxer. This vulnerability allows bypassing unsafe file extension checks and triggering arbitrary demuxers via base64-encoded data URIs appended with specific file extensions.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | ffmpeg | no fix listed | DEBIAN-CVE-2023-6601 |
| Debian:13 | ffmpeg | 7:6.1-1 | DEBIAN-CVE-2023-6601 |
| Debian:14 | ffmpeg | 7:6.1-1 | DEBIAN-CVE-2023-6601 |
| Ubuntu:25.10 | ffmpeg | no fix listed | UBUNTU-CVE-2023-6601 |
| Ubuntu:26.10 | ffmpeg | no fix listed | UBUNTU-CVE-2023-6601 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| FFmpeg | 2.0 – before 6.* |
Weakness: CWE-99, CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
References
- RHBZ#2253172 issue-tracking, x_refsource_REDHAT
- https://lists.debian.org/debian-lts-announce/2025/07/msg00004.html