---
id: CVE-2026-125258
title: >-
  FFmpeg through 9.0.2 Division by Zero via dovi_configure_ext() in
  dovi_rpuenc.c
summary: >-
  FFmpeg through 9.0.2 contains a division by zero vulnerability in
  dovi_configure_ext() in libavcodec/dovi_rpuenc.c that allows attackers to
  crash the process via an unvalidated frame rate denominator. Attackers can
  supply a crafted HEVC …
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-369
vendor: FFmpeg
product: FFmpeg
affected:
  - FFmpeg <= 9.0.2
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-09T20:55:03.666768Z'
published: '2026-11-09'
updated: '2026-11-09'
sourceUpdated: '2026-11-09T20:56:48.553Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-125258'
references:
  - url: 'https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25408'
  - url: >-
      https://github.com/FFmpeg/FFmpeg/commit/ab28d57ba2ec07b41b4a60ed8806b13a39ec86fe
    label: Patch Commit
  - url: 'https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/dovi_rpuenc.c#L187'
  - url: 'https://github.com/FFmpeg/FFmpeg'
  - url: >-
      https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-division-by-zero-via-dovi-configure-ext-in-dovi-rpuenc-c
    label: >-
      VulnCheck Advisory: FFmpeg through 9.0.2 Division by Zero via
      dovi_configure_ext() in dovi_rpuenc.c
tags:
  - cve.org
ingestedAt: '2026-11-09T20:27:27.080Z'
---

## Overview

FFmpeg through 9.0.2 contains a division by zero vulnerability in dovi_configure_ext() in libavcodec/dovi_rpuenc.c that allows attackers to crash the process via an unvalidated frame rate denominator. Attackers can supply a crafted HEVC or AV1 input with a nonzero frame rate numerator and zero denominator to the dovi_rpu bitstream filter or libx265, libaom, or libsvtav1 encoders, causing denial of service.

## Affected

- `FFmpeg <= 9.0.2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.