CVE-2026-28687

MEDIUM

ImageMagick has Heap Use-After-Free in ImageMagick MSL decoder

Published March 12, 2026Updated March 14, 2026Source: osv

Summary

A heap use-after-free vulnerability in ImageMagick's MSL decoder allows an attacker to trigger access to freed memory by crafting an MSL file. ``` ================================================================= ==1500633==ERROR: AddressSanitizer: heap-use-after-free on address 0x527000011550 at pc 0x5612583fa212 bp 0x7ffedb86d160 sp 0x7ffedb86d150 READ of size 8 at 0x527000011550 thread T0 ```

Remediation

Upgrade to the fixed version using your package manager.

NuGet

Update Magick.NET-Q16-x64 to 14.10.4 or later

dotnet add package Magick.NET-Q16-x64 --version 14.10.4

NuGet

Update Magick.NET-Q16-OpenMP-x86 to 14.10.4 or later

dotnet add package Magick.NET-Q16-OpenMP-x86 --version 14.10.4

NuGet

Update Magick.NET-Q8-arm64 to 14.10.4 or later

dotnet add package Magick.NET-Q8-arm64 --version 14.10.4

NuGet

Update Magick.NET-Q16-HDRI-OpenMP-arm64 to 14.10.4 or later

dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.10.4

NuGet

Update Magick.NET-Q16-HDRI-AnyCPU to 14.10.4 or later

dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.10.4

NuGet

Update Magick.NET-Q8-OpenMP-arm64 to 14.10.4 or later

dotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.10.4

NuGet

Update Magick.NET-Q16-arm64 to 14.10.4 or later

dotnet add package Magick.NET-Q16-arm64 --version 14.10.4

NuGet

Update Magick.NET-Q8-x64 to 14.10.4 or later

dotnet add package Magick.NET-Q8-x64 --version 14.10.4

NuGet

Update Magick.NET-Q16-HDRI-arm64 to 14.10.4 or later

dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.10.4

NuGet

Update Magick.NET-Q16-HDRI-x86 to 14.10.4 or later

dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.10.4

NuGet

Update Magick.NET-Q16-OpenMP-x64 to 14.10.4 or later

dotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.10.4

NuGet

Update Magick.NET-Q8-AnyCPU to 14.10.4 or later

dotnet add package Magick.NET-Q8-AnyCPU --version 14.10.4

NuGet

Update Magick.NET-Q8-x86 to 14.10.4 or later

dotnet add package Magick.NET-Q8-x86 --version 14.10.4

NuGet

Update Magick.NET-Q16-OpenMP-arm64 to 14.10.4 or later

dotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.10.4

NuGet

Update Magick.NET-Q16-HDRI-x64 to 14.10.4 or later

dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.10.4

NuGet

Update Magick.NET-Q16-AnyCPU to 14.10.4 or later

dotnet add package Magick.NET-Q16-AnyCPU --version 14.10.4

NuGet

Update Magick.NET-Q16-HDRI-OpenMP-x64 to 14.10.4 or later

dotnet add package Magick.NET-Q16-HDRI-OpenMP-x64 --version 14.10.4

NuGet

Update Magick.NET-Q8-OpenMP-x64 to 14.10.4 or later

dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.10.4

NuGet

Update Magick.NET-Q16-x86 to 14.10.4 or later

dotnet add package Magick.NET-Q16-x86 --version 14.10.4

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

Affected Packages (19)

Package	Ecosystem	Affected	Fixed In
Magick.NET-Q16-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+222 more)	14.10.4
Magick.NET-Q16-OpenMP-x86	nuget	All versions	14.10.4
Magick.NET-Q8-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+51 more)	14.10.4
Magick.NET-Q16-HDRI-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+51 more)	14.10.4
Magick.NET-Q16-HDRI-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+203 more)	14.10.4
Magick.NET-Q8-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+51 more)	14.10.4
Magick.NET-Q16-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+51 more)	14.10.4
Magick.NET-Q8-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+222 more)	14.10.4
Magick.NET-Q16-HDRI-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+51 more)	14.10.4
Magick.NET-Q16-HDRI-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+203 more)	14.10.4
Magick.NET-Q16-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+103 more)	14.10.4
Magick.NET-Q8-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+206 more)	14.10.4
Magick.NET-Q8-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+222 more)	14.10.4
Magick.NET-Q16-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+51 more)	14.10.4
Magick.NET-Q16-HDRI-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+203 more)	14.10.4
Magick.NET-Q16-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+206 more)	14.10.4
Magick.NET-Q16-HDRI-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+103 more)	14.10.4
Magick.NET-Q8-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+103 more)	14.10.4
Magick.NET-Q16-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+222 more)	14.10.4

Vulnerability Classification

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

CWE-416
Use After FreeMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 5.3 score means for each attack dimension.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

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

References

Frequently Asked Questions

What is CVE-2026-28687?: ImageMagick has Heap Use-After-Free in ImageMagick MSL decoder This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 5.3/10).
How do I check if my project is affected by CVE-2026-28687?: CVE-2026-28687 affects Magick.NET-Q16-x64, Magick.NET-Q16-OpenMP-x86 and Magick.NET-Q8-arm64 (and 16 more). Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-28687 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

5.3

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

Also Known As

GHSA-fpvf-frm6-625q

Related CVEs

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HIGH
ImageMagick: Stack buffer overflow in FTXT reader via oversized integer field
CVE-2026-25989
HIGH
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CVE-2026-25988
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ImageMagick: MSL image stack index may fail to refresh, leading to leaked images
CVE-2026-25983
MEDIUM
ImageMagick has Use After Free in MSLStartElement in "coders/msl.c"
CVE-2026-28692
MEDIUM
ImageMagick has a heap buffer over-read via 32-bit integer overflow in MAT decoder
CVE-2026-33535
MEDIUM
ImageMagick has an Out-of-Bounds write of a zero byte in its X11 display interaction
CVE-2026-27799
MEDIUM
ImageMagick has a heap Buffer Over-read in its DJVU image format handler
CVE-2026-25984
LOW
ImageMagick: Integer Overflow in PSB (PSD v2) RLE decoding path causes heap Out of Bounds reads for 32-bit builds

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