---
id: "CVE-2026-125237"
page: "https://infrastack.ai/live/CVE-2026-125237"
kind: "vulnerability"
aliases: ["CVE-2026-125237"]
title: "FFmpeg: crafted DPX image crashes decoder via leaked Vulkan allocation"
severity: "medium"
cvss: 5.7
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["ffmpeg", "media-processing", "package", "vulkan"]
not_affected_if: ["no-dpx-input", "no-untrusted-images"]
published_at: "2026-11-09T19:17:01+00:00"
first_seen_at: "2026-11-09T19:28:20+00:00"
updated_at: "2026-11-09T19:32:01+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-125237", "first_seen_at": "2026-11-09T19:28:20+00:00"}]
exploit_sources: []
---

# FFmpeg: crafted DPX image crashes decoder via leaked Vulkan allocation

Link for people: https://infrastack.ai/live/CVE-2026-125237 (this .md is for agents)

FFmpeg 8.1 through 9.0.2 leaks a Vulkan hardware-acceleration buffer in its DPX image decoder when callbacks fail. A crafted DPX file triggers an assertion abort on the next frame, terminating the decoding application.

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

## How to check

- Check whether the installed FFmpeg (`ffmpeg -version`) is within 8.1 through 9.0.2.
- Look for applications that decode untrusted DPX images with FFmpeg's Vulkan hwaccel enabled.

## Timeline

- 2026-11-09T19:28:20+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-125237

## Documents

- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/ffmpeg-8.1-through-9.0.2-denial-of-service-via-dpx-vulkan-hwaccel-error-path

## From the sources

FFmpeg 8.1 through 9.0.2 contains a denial of service vulnerability in libavcodec/dpx.c that leaves dpx->hwaccel_picture_private allocated when Vulkan hwaccel callbacks fail. Attackers can supply crafted DPX images that make start_frame, decode_slice or end_frame fail, triggering an av_assert0 abort on the next frame and terminating the decoding application.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_