---
id: CVE-2026-125100
title: FFmpeg through 9.0.2 Integer Overflow in OpenEXR Decoder Tile Count
summary: >-
  FFmpeg through 9.0.2 contains an integer overflow vulnerability in the OpenEXR
  decoder's decode_frame() in libavcodec/exr.c that miscalculates the tiled
  block count. Attackers can supply a crafted tiled OpenEXR image with large
  dimension…
severity: low
cvss: 3.3
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-190
vendor: FFmpeg
product: FFmpeg
affected:
  - FFmpeg <= 9.0.2
published: '2026-11-09'
updated: '2026-11-09'
sourceUpdated: '2026-11-09T19:10:55.630Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-125100'
references:
  - url: 'https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25715'
  - url: >-
      https://github.com/FFmpeg/FFmpeg/commit/c05d46ea2919da83233bf4216d3f58428bb54c59
    label: Patch Commit
  - url: 'https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/exr.c#L2219'
  - url: 'https://github.com/FFmpeg/FFmpeg'
  - url: >-
      https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-integer-overflow-in-openexr-decoder-tile-count
    label: >-
      VulnCheck Advisory: FFmpeg through 9.0.2 Integer Overflow in OpenEXR
      Decoder Tile Count
tags:
  - cve.org
ingestedAt: '2026-11-09T19:18:02.627Z'
---

## Overview

FFmpeg through 9.0.2 contains an integer overflow vulnerability in the OpenEXR decoder's decode_frame() in libavcodec/exr.c that miscalculates the tiled block count. Attackers can supply a crafted tiled OpenEXR image with large dimensions and small tiles to skip decoding and disclose uninitialized memory or stale frame data.

## Affected

- `FFmpeg <= 9.0.2`

## Remediation

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