---
id: "CVE-2026-125068"
page: "https://infrastack.ai/live/CVE-2026-125068"
kind: "vulnerability"
aliases: ["CVE-2026-125068"]
title: "FFmpeg: crafted Bink video file crashes decoder for denial of service"
severity: "medium"
cvss: 6.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["ffmpeg", "libavcodec", "media-processing", "package"]
not_affected_if: ["no-bink-decoding"]
published_at: "2026-11-09T19:16:49+00:00"
first_seen_at: "2026-11-09T19:28:15+00:00"
updated_at: "2026-11-09T19:31:44+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-125068", "first_seen_at": "2026-11-09T19:28:15+00:00"}]
exploit_sources: []
---

# FFmpeg: crafted Bink video file crashes decoder for denial of service

Link for people: https://infrastack.ai/live/CVE-2026-125068 (this .md is for agents)

FFmpeg's Bink video decoder ignores a failed bit-reader initialization, causing a NULL pointer dereference. An attacker who supplies a crafted Bink file can crash the process, a denial of service.

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

## Timeline

- 2026-11-09T19:28:15+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-125068

## Documents

- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-null-pointer-dereference-in-bink-video-decoder
- [fix] Patch: github.com https://github.com/FFmpeg/FFmpeg/commit/5195d6f9729ad00b93e4d0f0bea309416fb4713e

## From the sources

FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in the Bink video decoder because decode_frame() in libavcodec/bink.c ignores init_get_bits() failure. Attackers can supply a crafted Bink file with a frame of about 2^28 bytes, overflowing the bit count and crashing the process for denial of service.

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