---
id: CVE-2026-48724
title: >-
  ImageMagick has a Heap Buffer Underwrite in the Floyd-Steinberg depth
  dithering method
summary: >-
  ImageMagick has a Heap Buffer Underwrite in the Floyd-Steinberg depth
  dithering method
severity: medium
cvss: 5.5
cwe:
  - CWE-787
vendor: Magick
product: Magick.NET-Q16-AnyCPU
ecosystem: nuget
affected:
  - Magick.NET-Q16-AnyCPU < 14.14.0
  - Magick.NET-Q16-HDRI-AnyCPU < 14.14.0
  - Magick.NET-Q16-HDRI-OpenMP-arm64 < 14.14.0
  - Magick.NET-Q16-HDRI-arm64 < 14.14.0
  - Magick.NET-Q16-HDRI-x64 < 14.14.0
  - Magick.NET-Q16-HDRI-x86 < 14.14.0
  - Magick.NET-Q16-OpenMP-arm64 < 14.14.0
  - Magick.NET-Q16-OpenMP-x64 < 14.14.0
  - Magick.NET-Q16-arm64 < 14.14.0
  - Magick.NET-Q16-x64 < 14.14.0
  - Magick.NET-Q16-x86 < 14.14.0
  - Magick.NET-Q8-AnyCPU < 14.14.0
  - Magick.NET-Q8-OpenMP-arm64 < 14.14.0
  - Magick.NET-Q8-OpenMP-x64 < 14.14.0
  - Magick.NET-Q8-arm64 < 14.14.0
  - Magick.NET-Q8-x64 < 14.14.0
  - Magick.NET-Q8-x86 < 14.14.0
patched:
  - Magick.NET-Q16-AnyCPU 14.14.0
  - Magick.NET-Q16-HDRI-AnyCPU 14.14.0
  - Magick.NET-Q16-HDRI-OpenMP-arm64 14.14.0
  - Magick.NET-Q16-HDRI-arm64 14.14.0
  - Magick.NET-Q16-HDRI-x64 14.14.0
  - Magick.NET-Q16-HDRI-x86 14.14.0
  - Magick.NET-Q16-OpenMP-arm64 14.14.0
  - Magick.NET-Q16-OpenMP-x64 14.14.0
  - Magick.NET-Q16-arm64 14.14.0
  - Magick.NET-Q16-x64 14.14.0
  - Magick.NET-Q16-x86 14.14.0
  - Magick.NET-Q8-AnyCPU 14.14.0
  - Magick.NET-Q8-OpenMP-arm64 14.14.0
  - Magick.NET-Q8-OpenMP-x64 14.14.0
  - Magick.NET-Q8-arm64 14.14.0
  - Magick.NET-Q8-x64 14.14.0
  - Magick.NET-Q8-x86 14.14.0
published: '2026-06-25'
updated: '2026-06-25'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-2hhq-c99x-492r'
references:
  - url: >-
      https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-2hhq-c99x-492r
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-48724'
  - url: 'https://github.com/dlemstra/Magick.NET/releases/tag/14.14.0'
  - url: 'https://github.com/advisories/GHSA-2hhq-c99x-492r'
tags:
  - ghsa
  - nuget
epss: 0.00148
epssPercentile: 0.0333
ingestedAt: '2026-06-26T16:43:14.216Z'
---

## Overview

When using an image with mask the Floyd-Steinberg dithering method will cause a negative heap buffer over-write.

## Affected packages

- `Magick.NET-Q16-AnyCPU < 14.14.0`
- `Magick.NET-Q16-HDRI-AnyCPU < 14.14.0`
- `Magick.NET-Q16-HDRI-OpenMP-arm64 < 14.14.0`
- `Magick.NET-Q16-HDRI-arm64 < 14.14.0`
- `Magick.NET-Q16-HDRI-x64 < 14.14.0`
- `Magick.NET-Q16-HDRI-x86 < 14.14.0`
- `Magick.NET-Q16-OpenMP-arm64 < 14.14.0`
- `Magick.NET-Q16-OpenMP-x64 < 14.14.0`
- `Magick.NET-Q16-arm64 < 14.14.0`
- `Magick.NET-Q16-x64 < 14.14.0`
- `Magick.NET-Q16-x86 < 14.14.0`
- `Magick.NET-Q8-AnyCPU < 14.14.0`
- `Magick.NET-Q8-OpenMP-arm64 < 14.14.0`
- `Magick.NET-Q8-OpenMP-x64 < 14.14.0`
- `Magick.NET-Q8-arm64 < 14.14.0`
- `Magick.NET-Q8-x64 < 14.14.0`
- `Magick.NET-Q8-x86 < 14.14.0`

## Remediation

Upgrade to a patched release:

- `Magick.NET-Q16-AnyCPU 14.14.0`
- `Magick.NET-Q16-HDRI-AnyCPU 14.14.0`
- `Magick.NET-Q16-HDRI-OpenMP-arm64 14.14.0`
- `Magick.NET-Q16-HDRI-arm64 14.14.0`
- `Magick.NET-Q16-HDRI-x64 14.14.0`
- `Magick.NET-Q16-HDRI-x86 14.14.0`
- `Magick.NET-Q16-OpenMP-arm64 14.14.0`
- `Magick.NET-Q16-OpenMP-x64 14.14.0`
- `Magick.NET-Q16-arm64 14.14.0`
- `Magick.NET-Q16-x64 14.14.0`
- `Magick.NET-Q16-x86 14.14.0`
- `Magick.NET-Q8-AnyCPU 14.14.0`
- `Magick.NET-Q8-OpenMP-arm64 14.14.0`
- `Magick.NET-Q8-OpenMP-x64 14.14.0`
- `Magick.NET-Q8-arm64 14.14.0`
- `Magick.NET-Q8-x64 14.14.0`
- `Magick.NET-Q8-x86 14.14.0`