CVE-2026-48724

MEDIUM

ImageMagick has a Heap Buffer Underwrite in the Floyd-Steinberg depth dithering method

Published June 25, 2026Updated June 25, 2026Source: osv

Summary

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

Remediation

Upgrade to the fixed version using your package manager.

NuGet

Update Magick.NET-Q16-x64 to 14.14.0 or later

dotnet add package Magick.NET-Q16-x64 --version 14.14.0

NuGet

Update Magick.NET-Q16-HDRI-arm64 to 14.14.0 or later

dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.14.0

NuGet

Update Magick.NET-Q8-x64 to 14.14.0 or later

dotnet add package Magick.NET-Q8-x64 --version 14.14.0

NuGet

Update Magick.NET-Q8-OpenMP-arm64 to 14.14.0 or later

dotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.14.0

NuGet

Update Magick.NET-Q16-HDRI-x86 to 14.14.0 or later

dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.14.0

NuGet

Update Magick.NET-Q8-OpenMP-x64 to 14.14.0 or later

dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.14.0

NuGet

Update Magick.NET-Q16-HDRI-x64 to 14.14.0 or later

dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.14.0

NuGet

Update Magick.NET-Q16-HDRI-OpenMP-arm64 to 14.14.0 or later

dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.14.0

NuGet

Update Magick.NET-Q8-x86 to 14.14.0 or later

dotnet add package Magick.NET-Q8-x86 --version 14.14.0

NuGet

Update Magick.NET-Q16-x86 to 14.14.0 or later

dotnet add package Magick.NET-Q16-x86 --version 14.14.0

NuGet

Update Magick.NET-Q8-AnyCPU to 14.14.0 or later

dotnet add package Magick.NET-Q8-AnyCPU --version 14.14.0

NuGet

Update Magick.NET-Q16-arm64 to 14.14.0 or later

dotnet add package Magick.NET-Q16-arm64 --version 14.14.0

NuGet

Update Magick.NET-Q8-arm64 to 14.14.0 or later

dotnet add package Magick.NET-Q8-arm64 --version 14.14.0

NuGet

Update Magick.NET-Q16-OpenMP-x64 to 14.14.0 or later

dotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.14.0

NuGet

Update Magick.NET-Q16-AnyCPU to 14.14.0 or later

dotnet add package Magick.NET-Q16-AnyCPU --version 14.14.0

NuGet

Update Magick.NET-Q16-HDRI-AnyCPU to 14.14.0 or later

dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.14.0

NuGet

Update Magick.NET-Q16-OpenMP-arm64 to 14.14.0 or later

dotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.14.0

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (17)

Package	Ecosystem	Affected	Fixed In
Magick.NET-Q16-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+228 more)	14.14.0
Magick.NET-Q16-HDRI-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+57 more)	14.14.0
Magick.NET-Q8-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+228 more)	14.14.0
Magick.NET-Q8-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+57 more)	14.14.0
Magick.NET-Q16-HDRI-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+209 more)	14.14.0
Magick.NET-Q8-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+109 more)	14.14.0
Magick.NET-Q16-HDRI-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+209 more)	14.14.0
Magick.NET-Q16-HDRI-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+57 more)	14.14.0
Magick.NET-Q8-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+228 more)	14.14.0
Magick.NET-Q16-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+228 more)	14.14.0
Magick.NET-Q8-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+212 more)	14.14.0
Magick.NET-Q16-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+57 more)	14.14.0
Magick.NET-Q8-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+57 more)	14.14.0
Magick.NET-Q16-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+109 more)	14.14.0
Magick.NET-Q16-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+212 more)	14.14.0
Magick.NET-Q16-HDRI-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+209 more)	14.14.0
Magick.NET-Q16-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+57 more)	14.14.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-787
Out-of-bounds WriteMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 5.5 score means for each attack dimension.

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Frequently Asked Questions

What is CVE-2026-48724?: ImageMagick has a Heap Buffer Underwrite in the Floyd-Steinberg depth dithering method This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 5.5/10).
How do I check if my project is affected by CVE-2026-48724?: CVE-2026-48724 affects Magick.NET-Q16-x64, Magick.NET-Q16-HDRI-arm64 and Magick.NET-Q8-x64 (and 14 more). Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-48724 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

5.5

Exploitation requires specific conditions or has limited impact. Remediate within weeks.

Also Known As

GHSA-2hhq-c99x-492r

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