# CVE-2026-30997: ffmpeg: An out-of-bounds read in the read_global_param() function (libavcodec/av1dec.c) of FFmpeg v8.0.1 allows attackers to...

CVE-2026-30997 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2026-30997, released April 13, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-30997
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0034
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 13, 2026

## Description

An out-of-bounds read in the read_global_param() function (libavcodec/av1dec.c) of FFmpeg v8.0.1 allows attackers to cause a Denial of Service (DoS) via a crafted input.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ffmpeg Debian 12.15 (bookworm) | 7:5.1.9-0+deb12u1 | [DEBIAN-CVE-2026-30997](https://patchblox.com/security/data/fix/linux/debian-cve-2026-30997.md) | Apr 13, 2026 |
| Linux | ffmpeg Debian 13.5 (trixie) | 7:7.1.5-0+deb13u1 | [DEBIAN-CVE-2026-30997](https://patchblox.com/security/data/fix/linux/debian-cve-2026-30997.md) | Apr 13, 2026 |
| Linux | ffmpeg Debian 14 | 7:8.1.1-1 | [DEBIAN-CVE-2026-30997](https://patchblox.com/security/data/fix/linux/debian-cve-2026-30997.md) | Apr 13, 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 | 7.1.4-160000.2.1 | [OPENSUSE-SU-2026:21258-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21258-1.md) | Jul 7, 2026 |
| Linux | ffmpeg-7 sles 16.0 | 7.1.4-160000.2.1 | [SUSE-SU-2026:22573-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22573-1.md) | Jul 7, 2026 |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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