# CVE-2023-6601: ffmpeg: A flaw was found in FFmpeg's HLS demuxer

CVE-2023-6601 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2023-6601, released January 6, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-6601
- Priority: Routine
- CVSS: 4.7 (medium)
- EPSS: 0.0042
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 6, 2025

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ffmpeg Debian 13.5 (trixie) | 7:6.1-1 | [DEBIAN-CVE-2023-6601](https://patchblox.com/security/data/fix/linux/debian-cve-2023-6601.md) | Jan 6, 2025 |
| Linux | ffmpeg Debian 14 | 7:6.1-1 | [DEBIAN-CVE-2023-6601](https://patchblox.com/security/data/fix/linux/debian-cve-2023-6601.md) | Jan 6, 2025 |
| Linux | ffmpeg-4 opensuse-leap 15.6 | 4.4.6-150600.13.38.1 | [SUSE-SU-2026:0198-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0198-1.md) | Jan 21, 2026 |
| Linux | ffmpeg-4 sles 15.7 | 4.4.7-150600.13.47.1 | [SUSE-SU-2026:2445-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2445-1.md) | Jun 18, 2026 |
| Linux | ffmpeg-7 opensuse-leap 16.0 | 7.1.4-160000.1.1 | [OPENSUSE-SU-2026:21211-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21211-1.md) | Jul 2, 2026 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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