---
id: CVE-2026-56373
title: ImageMagick - Use-After-Free Write in PDB Decoder
summary: >-
  ImageMagick before 7.1.2-15 contains a use-after-free vulnerability in the PDB
  decoder that uses a stale pointer when memory allocation fails. Attackers can
  trigger this vulnerability by processing malicious PDB files to cause crashes
  or…
severity: low
cvss: 3.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'
cvssSource: cna
cwe:
  - CWE-416
vendor: ImageMagick
product: ImageMagick
affected:
  - ImageMagick >= 7.0.0 < 7.1.2-15
  - ImageMagick < 6.9.13-40
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-07-10T15:04:44.577179Z'
published: '2026-07-10'
updated: '2026-10-29'
sourceUpdated: '2026-10-29T21:15:55.305Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-56373'
references:
  - url: >-
      https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-3j4x-rwrx-xxj9
    label: GitHub Security Advisory (GHSA-3j4x-rwrx-xxj9)
  - url: >-
      https://www.vulncheck.com/advisories/imagemagick-use-after-free-write-in-pdb-decoder
    label: 'VulnCheck Advisory: ImageMagick - Use-After-Free Write in PDB Decoder'
tags:
  - cve.org
epss: 0.00231
epssPercentile: 0.14031
ingestedAt: '2026-11-03T08:39:35.562Z'
---

## Overview

ImageMagick before 7.1.2-15 contains a use-after-free vulnerability in the PDB decoder that uses a stale pointer when memory allocation fails. Attackers can trigger this vulnerability by processing malicious PDB files to cause crashes or write a single zero byte to freed memory.

## Affected

- `ImageMagick >= 7.0.0 < 7.1.2-15`
- `ImageMagick < 6.9.13-40`

## Remediation

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