---
id: CVE-2026-55597
aliases:
  - GHSA-c4v7-w88g-m6c4
title: >-
  ImageMagick: Heap Buffer Over-Write in JP2 encoder when due to incorrect
  handling of arguments
summary: >-
  ImageMagick: Heap Buffer Over-Write in JP2 encoder when due to incorrect
  handling of arguments
severity: medium
cvss: 5.5
cwe:
  - CWE-682
  - CWE-787
vendor: Magick
product: Magick.NET-Q16-AnyCPU
ecosystem: nuget
affected:
  - Magick.NET-Q16-AnyCPU < 14.15.0
  - Magick.NET-Q16-HDRI-AnyCPU < 14.15.0
  - Magick.NET-Q16-HDRI-OpenMP-arm64 < 14.15.0
  - Magick.NET-Q16-HDRI-x64 < 14.15.0
  - Magick.NET-Q16-HDRI-x86 < 14.15.0
  - Magick.NET-Q16-OpenMP-arm64 < 14.15.0
  - Magick.NET-Q16-OpenMP-x64 < 14.15.0
  - Magick.NET-Q16-arm64 < 14.15.0
  - Magick.NET-Q16-x64 < 14.15.0
  - Magick.NET-Q16-x86 < 14.15.0
  - Magick.NET-Q8-AnyCPU < 14.15.0
  - Magick.NET-Q8-OpenMP-arm64 < 14.15.0
  - Magick.NET-Q8-OpenMP-x64 < 14.15.0
  - Magick.NET-Q8-arm64 < 14.15.0
  - Magick.NET-Q8-x64 < 14.15.0
  - Magick.NET-Q8-x86 < 14.15.0
  - Magick.NET-Q16-HDRI-arm64 < 14.15.0
patched:
  - Magick.NET-Q16-AnyCPU 14.15.0
  - Magick.NET-Q16-HDRI-AnyCPU 14.15.0
  - Magick.NET-Q16-HDRI-OpenMP-arm64 14.15.0
  - Magick.NET-Q16-HDRI-x64 14.15.0
  - Magick.NET-Q16-HDRI-x86 14.15.0
  - Magick.NET-Q16-OpenMP-arm64 14.15.0
  - Magick.NET-Q16-OpenMP-x64 14.15.0
  - Magick.NET-Q16-arm64 14.15.0
  - Magick.NET-Q16-x64 14.15.0
  - Magick.NET-Q16-x86 14.15.0
  - Magick.NET-Q8-AnyCPU 14.15.0
  - Magick.NET-Q8-OpenMP-arm64 14.15.0
  - Magick.NET-Q8-OpenMP-x64 14.15.0
  - Magick.NET-Q8-arm64 14.15.0
  - Magick.NET-Q8-x64 14.15.0
  - Magick.NET-Q8-x86 14.15.0
  - Magick.NET-Q16-HDRI-arm64 14.15.0
published: '2026-07-24'
updated: '2026-07-24'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-c4v7-w88g-m6c4'
references:
  - url: >-
      https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-c4v7-w88g-m6c4
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-55597'
  - url: 'https://github.com/dlemstra/Magick.NET/releases/tag/14.15.0'
  - url: 'https://github.com/advisories/GHSA-c4v7-w88g-m6c4'
tags:
  - ghsa
  - nuget
epss: 0.00148
epssPercentile: 0.03328
ingestedAt: '2026-07-24T14:29:29.279Z'
---

## Overview

Due to incorrect handling of arguments a heap buffer over-write can occur in the JP2 encoder.

## Affected packages

- `Magick.NET-Q16-AnyCPU < 14.15.0`
- `Magick.NET-Q16-HDRI-AnyCPU < 14.15.0`
- `Magick.NET-Q16-HDRI-OpenMP-arm64 < 14.15.0`
- `Magick.NET-Q16-HDRI-x64 < 14.15.0`
- `Magick.NET-Q16-HDRI-x86 < 14.15.0`
- `Magick.NET-Q16-OpenMP-arm64 < 14.15.0`
- `Magick.NET-Q16-OpenMP-x64 < 14.15.0`
- `Magick.NET-Q16-arm64 < 14.15.0`
- `Magick.NET-Q16-x64 < 14.15.0`
- `Magick.NET-Q16-x86 < 14.15.0`
- `Magick.NET-Q8-AnyCPU < 14.15.0`
- `Magick.NET-Q8-OpenMP-arm64 < 14.15.0`
- `Magick.NET-Q8-OpenMP-x64 < 14.15.0`
- `Magick.NET-Q8-arm64 < 14.15.0`
- `Magick.NET-Q8-x64 < 14.15.0`
- `Magick.NET-Q8-x86 < 14.15.0`
- `Magick.NET-Q16-HDRI-arm64 < 14.15.0`

## Remediation

Upgrade to a patched release:

- `Magick.NET-Q16-AnyCPU 14.15.0`
- `Magick.NET-Q16-HDRI-AnyCPU 14.15.0`
- `Magick.NET-Q16-HDRI-OpenMP-arm64 14.15.0`
- `Magick.NET-Q16-HDRI-x64 14.15.0`
- `Magick.NET-Q16-HDRI-x86 14.15.0`
- `Magick.NET-Q16-OpenMP-arm64 14.15.0`
- `Magick.NET-Q16-OpenMP-x64 14.15.0`
- `Magick.NET-Q16-arm64 14.15.0`
- `Magick.NET-Q16-x64 14.15.0`
- `Magick.NET-Q16-x86 14.15.0`
- `Magick.NET-Q8-AnyCPU 14.15.0`
- `Magick.NET-Q8-OpenMP-arm64 14.15.0`
- `Magick.NET-Q8-OpenMP-x64 14.15.0`
- `Magick.NET-Q8-arm64 14.15.0`
- `Magick.NET-Q8-x64 14.15.0`
- `Magick.NET-Q8-x86 14.15.0`
- `Magick.NET-Q16-HDRI-arm64 14.15.0`