CVE-2026-25986

MEDIUM

ImageMagick has heap buffer overflow in YUV 4:2:2 decoder

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

Summary

A heap buffer overflow write vulnerability exists in ReadYUVImage() (coders/yuv.c) when processing malicious YUV 4:2:2 (NoInterlace) images. The pixel-pair loop writes one pixel beyond the allocated row buffer. ``` ================================================================= ==204642==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x5170000002e0 at pc 0x562d21a7e8de bp 0x7fffa9ae1270 sp 0x7fffa9ae1260 WRITE of size 8 at 0x5170000002e0 thread T0 ```

Remediation

Upgrade to the fixed version using your package manager.

NuGet

Update Magick.NET-Q8-x86 to 14.10.3 or later

dotnet add package Magick.NET-Q8-x86 --version 14.10.3

NuGet

Update Magick.NET-Q16-HDRI-x64 to 14.10.3 or later

dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.10.3

NuGet

Update Magick.NET-Q16-HDRI-arm64 to 14.10.3 or later

dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.10.3

NuGet

Update Magick.NET-Q16-HDRI-AnyCPU to 14.10.3 or later

dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.10.3

NuGet

Update Magick.NET-Q16-OpenMP-x86 to 14.10.3 or later

dotnet add package Magick.NET-Q16-OpenMP-x86 --version 14.10.3

NuGet

Update Magick.NET-Q16-x86 to 14.10.3 or later

dotnet add package Magick.NET-Q16-x86 --version 14.10.3

NuGet

Update Magick.NET-Q8-OpenMP-arm64 to 14.10.3 or later

dotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.10.3

NuGet

Update Magick.NET-Q16-AnyCPU to 14.10.3 or later

dotnet add package Magick.NET-Q16-AnyCPU --version 14.10.3

NuGet

Update Magick.NET-Q8-AnyCPU to 14.10.3 or later

dotnet add package Magick.NET-Q8-AnyCPU --version 14.10.3

NuGet

Update Magick.NET-Q16-HDRI-x86 to 14.10.3 or later

dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.10.3

NuGet

Update Magick.NET-Q16-OpenMP-arm64 to 14.10.3 or later

dotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.10.3

NuGet

Update Magick.NET-Q16-x64 to 14.10.3 or later

dotnet add package Magick.NET-Q16-x64 --version 14.10.3

NuGet

Update Magick.NET-Q16-OpenMP-x64 to 14.10.3 or later

dotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.10.3

NuGet

Update Magick.NET-Q16-arm64 to 14.10.3 or later

dotnet add package Magick.NET-Q16-arm64 --version 14.10.3

NuGet

Update Magick.NET-Q16-HDRI-OpenMP-x64 to 14.10.3 or later

dotnet add package Magick.NET-Q16-HDRI-OpenMP-x64 --version 14.10.3

NuGet

Update Magick.NET-Q8-OpenMP-x64 to 14.10.3 or later

dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.10.3

NuGet

Update Magick.NET-Q8-arm64 to 14.10.3 or later

dotnet add package Magick.NET-Q8-arm64 --version 14.10.3

NuGet

Update Magick.NET-Q8-x64 to 14.10.3 or later

dotnet add package Magick.NET-Q8-x64 --version 14.10.3

NuGet

Update Magick.NET-Q16-HDRI-OpenMP-arm64 to 14.10.3 or later

dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.10.3

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

Affected Packages (19)

Package	Ecosystem	Affected	Fixed In
Magick.NET-Q8-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+221 more)	14.10.3
Magick.NET-Q16-HDRI-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+202 more)	14.10.3
Magick.NET-Q16-HDRI-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+50 more)	14.10.3
Magick.NET-Q16-HDRI-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+202 more)	14.10.3
Magick.NET-Q16-OpenMP-x86	nuget	All versions	14.10.3
Magick.NET-Q16-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+221 more)	14.10.3
Magick.NET-Q8-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+50 more)	14.10.3
Magick.NET-Q16-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+205 more)	14.10.3
Magick.NET-Q8-AnyCPU	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+205 more)	14.10.3
Magick.NET-Q16-HDRI-x86	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+202 more)	14.10.3
Magick.NET-Q16-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+50 more)	14.10.3
Magick.NET-Q16-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+221 more)	14.10.3
Magick.NET-Q16-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+102 more)	14.10.3
Magick.NET-Q16-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+50 more)	14.10.3
Magick.NET-Q16-HDRI-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+102 more)	14.10.3
Magick.NET-Q8-OpenMP-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+102 more)	14.10.3
Magick.NET-Q8-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+50 more)	14.10.3
Magick.NET-Q8-x64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+221 more)	14.10.3
Magick.NET-Q16-HDRI-OpenMP-arm64	nuget	10.0.0, 10.1.0, 11.0.0, 11.1.0 (+50 more)	14.10.3

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) 5.3 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-2026-25986?: ImageMagick has heap buffer overflow in YUV 4:2:2 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-2026-25986?: CVE-2026-25986 affects Magick.NET-Q8-x86, Magick.NET-Q16-HDRI-x64 and Magick.NET-Q16-HDRI-arm64 (and 16 more). Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-25986 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-mqfc-82jx-3mr2

Related CVEs

CVE-2026-28494
HIGH
ImageMagick vulnerable to stack corruption through long morphology kernel names or arrays
CVE-2026-24485
HIGH
ImageMagick: Infinite loop vulnerability when parsing a PCD file
CVE-2025-53015
HIGH
ImageMagick has XMP profile write that triggers hang due to unbounded loop
CVE-2026-28686
MEDIUM
ImageMagick: Write heap-buffer-overflow in PCL encoder via undersized output buffer
CVE-2026-28689
MEDIUM
ImageMagick has a Path Policy TOCTOU symlink race bypass
CVE-2026-25971
MEDIUM
ImageMagick: MSL - Stack overflow in ProcessMSLScript
CVE-2026-25982
MEDIUM
ImageMagick has Heap Out-of-Bounds Read in DCM Decoder (ReadDCMImage)
CVE-2026-25898
MEDIUM
ImageMagick has Global Buffer Overflow (OOB Read) via Negative Pixel Index in UIL and XPM Writer

Check if you're affected

Scan your dependencies to see if this vulnerability affects your projects.

Scan Your Dependencies