# CVE-2025-9951: ffmpeg: A heap-buffer-overflow write exists in jpeg2000dec FFmpeg which allows an attacker to potentially gain remote code ex...

CVE-2025-9951 is fixed in 17 products on 1 platform, first by DEBIAN-CVE-2025-9951, released September 9, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-9951
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0044
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 9, 2025

## Description

A heap-buffer-overflow write exists in jpeg2000dec FFmpeg which allows an attacker to potentially gain remote code execution or cause denial of service via the channel definition cdef atom of JPEG2000.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ffmpeg Debian 12.15 (bookworm) | 7:5.1.7-0+deb12u1 | [DEBIAN-CVE-2025-9951](https://patchblox.com/security/data/fix/linux/debian-cve-2025-9951.md) | Sep 9, 2025 |
| Linux | ffmpeg Debian 13.5 (trixie) | 7:7.1.2-0+deb13u1 | [DEBIAN-CVE-2025-9951](https://patchblox.com/security/data/fix/linux/debian-cve-2025-9951.md) | Sep 9, 2025 |
| Linux | ffmpeg Debian 14 | 7:7.1.2-1 | [DEBIAN-CVE-2025-9951](https://patchblox.com/security/data/fix/linux/debian-cve-2025-9951.md) | Sep 9, 2025 |
| Linux | ffmpeg Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm6 | [ffmpeg 7:6.1.1-3ubuntu5+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-ffmpeg-7-6.1.1-3ubuntu5-esm6.md) | Sep 15, 2025 |
| 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 |
| Linux | libavcodec-extra Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm6 | [libavcodec-extra 7:6.1.1-3ubuntu5+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libavcodec-extra-7-6.1.1-3ubuntu5-esm6.md) | Sep 15, 2025 |
| Linux | libavcodec-extra60 Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm6 | [libavcodec-extra60 7:6.1.1-3ubuntu5+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libavcodec-extra60-7-6.1.1-3ubuntu5-esm6.md) | Sep 15, 2025 |
| Linux | libavcodec60 Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm6 | [libavcodec60 7:6.1.1-3ubuntu5+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libavcodec60-7-6.1.1-3ubuntu5-esm6.md) | Sep 15, 2025 |
| Linux | libavdevice60 Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm6 | [libavdevice60 7:6.1.1-3ubuntu5+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libavdevice60-7-6.1.1-3ubuntu5-esm6.md) | Sep 15, 2025 |
| Linux | libavfilter-extra Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm6 | [libavfilter-extra 7:6.1.1-3ubuntu5+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libavfilter-extra-7-6.1.1-3ubuntu5-esm6.md) | Sep 15, 2025 |
| Linux | libavfilter-extra9 Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm6 | [libavfilter-extra9 7:6.1.1-3ubuntu5+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libavfilter-extra9-7-6.1.1-3ubuntu5-esm6.md) | Sep 15, 2025 |
| Linux | libavfilter9 Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm6 | [libavfilter9 7:6.1.1-3ubuntu5+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libavfilter9-7-6.1.1-3ubuntu5-esm6.md) | Sep 15, 2025 |
| Linux | libavformat-extra Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm6 | [libavformat-extra 7:6.1.1-3ubuntu5+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libavformat-extra-7-6.1.1-3ubuntu5-esm6.md) | Sep 15, 2025 |
| Linux | libavformat-extra60 Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm6 | [libavformat-extra60 7:6.1.1-3ubuntu5+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libavformat-extra60-7-6.1.1-3ubuntu5-esm6.md) | Sep 15, 2025 |
| Linux | libavformat60 Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm6 | [libavformat60 7:6.1.1-3ubuntu5+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libavformat60-7-6.1.1-3ubuntu5-esm6.md) | Sep 15, 2025 |
| Linux | libavutil58 Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm6 | [libavutil58 7:6.1.1-3ubuntu5+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libavutil58-7-6.1.1-3ubuntu5-esm6.md) | Sep 15, 2025 |
| Linux | libpostproc57 Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm6 | [libpostproc57 7:6.1.1-3ubuntu5+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libpostproc57-7-6.1.1-3ubuntu5-esm6.md) | Sep 15, 2025 |
| Linux | libswresample4 Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm6 | [libswresample4 7:6.1.1-3ubuntu5+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libswresample4-7-6.1.1-3ubuntu5-esm6.md) | Sep 15, 2025 |
| Linux | libswscale7 Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm6 | [libswscale7 7:6.1.1-3ubuntu5+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libswscale7-7-6.1.1-3ubuntu5-esm6.md) | Sep 15, 2025 |

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Data as of 2026-11-08T13:06:02Z 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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