---
id: "CVE-2026-125215"
page: "https://infrastack.ai/live/CVE-2026-125215"
kind: "vulnerability"
aliases: ["CVE-2026-125215"]
title: "FFmpeg: crafted Dolby Vision metadata crashes applications with a NULL pointer"
severity: "medium"
cvss: 5.7
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["dolby-vision", "ffmpeg", "package", "video-processing"]
not_affected_if: ["filter-unused", "no-untrusted-input"]
published_at: "2026-11-09T19:16:58+00:00"
first_seen_at: "2026-11-09T19:28:19+00:00"
updated_at: "2026-11-09T19:32:01+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-125215", "first_seen_at": "2026-11-09T19:28:19+00:00"}]
exploit_sources: []
---

# FFmpeg: crafted Dolby Vision metadata crashes applications with a NULL pointer

Link for people: https://infrastack.ai/live/CVE-2026-125215 (this .md is for agents)

FFmpeg's Dolby Vision RPU encoder dereferences a NULL pointer when a stream has omitted DM blocks and compression is enabled. An attacker who supplies a crafted stream can crash any application that processes it, causing denial of service.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the FFmpeg version with `ffmpeg -version`; affected releases are 7.1 through 9.0.2.
- Look for the `dovi_rpu` bitstream filter in applications that process untrusted video.

## Timeline

- 2026-11-09T19:28:19+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-125215

## Documents

- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/ffmpeg-7.1-through-9.0.2-null-pointer-dereference-via-ff-dovi-rpu-generate
- [fix] Patch: github.com https://github.com/FFmpeg/FFmpeg/commit/11c4b420183cb2d6cd4afaa53de57d400a45e09e
- [fix] Patch: github.com https://github.com/FFmpeg/FFmpeg/commit/971ea9d6a2a9ae4c770936f0569cf40720d4c304

## From the sources

FFmpeg 7.1 through 9.0.2 contains a NULL pointer dereference vulnerability in ff_dovi_rpu_generate() in libavcodec/dovi_rpuenc.c that allows attackers to crash applications via crafted Dolby Vision RPU metadata. Attackers can supply streams with default or alternating omitted DM blocks to the dovi_rpu bitstream filter with compression enabled, causing denial of service.

---

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