CVE-2026-25987
MEDIUM
ImageMagick has a heap buffer over-read in its MAP image decoder
Published February 24, 2026Updated February 24, 2026Source: osv
Summary
A heap buffer over-read vulnerability exists in the MAP image decoder when processing crafted MAP files, potentially leading to crashes or unintended memory disclosure during image decoding.
```
=================================================================
==4070926==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x502000002b31 at pc 0x56517afbd910 bp 0x7ffc59e90000 sp 0x7ffc59e8fff0
READ of size 1 at 0x502000002b31 thread T0
```
Remediation
Upgrade to the fixed version using your package manager.
NuGet
Update Magick.NET-Q8-x86 to 14.10.3 or laterdotnet add package Magick.NET-Q8-x86 --version 14.10.3
NuGet
Update Magick.NET-Q16-HDRI-x64 to 14.10.3 or laterdotnet add package Magick.NET-Q16-HDRI-x64 --version 14.10.3
NuGet
Update Magick.NET-Q16-HDRI-arm64 to 14.10.3 or laterdotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.10.3
NuGet
Update Magick.NET-Q16-HDRI-AnyCPU to 14.10.3 or laterdotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.10.3
NuGet
Update Magick.NET-Q16-OpenMP-x86 to 14.10.3 or laterdotnet add package Magick.NET-Q16-OpenMP-x86 --version 14.10.3
NuGet
Update Magick.NET-Q16-x86 to 14.10.3 or laterdotnet add package Magick.NET-Q16-x86 --version 14.10.3
NuGet
Update Magick.NET-Q8-OpenMP-arm64 to 14.10.3 or laterdotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.10.3
NuGet
Update Magick.NET-Q16-AnyCPU to 14.10.3 or laterdotnet add package Magick.NET-Q16-AnyCPU --version 14.10.3
NuGet
Update Magick.NET-Q8-AnyCPU to 14.10.3 or laterdotnet add package Magick.NET-Q8-AnyCPU --version 14.10.3
NuGet
Update Magick.NET-Q16-HDRI-x86 to 14.10.3 or laterdotnet add package Magick.NET-Q16-HDRI-x86 --version 14.10.3
NuGet
Update Magick.NET-Q16-OpenMP-arm64 to 14.10.3 or laterdotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.10.3
NuGet
Update Magick.NET-Q16-x64 to 14.10.3 or laterdotnet add package Magick.NET-Q16-x64 --version 14.10.3
NuGet
Update Magick.NET-Q16-OpenMP-x64 to 14.10.3 or laterdotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.10.3
NuGet
Update Magick.NET-Q16-arm64 to 14.10.3 or laterdotnet add package Magick.NET-Q16-arm64 --version 14.10.3
NuGet
Update Magick.NET-Q16-HDRI-OpenMP-x64 to 14.10.3 or laterdotnet add package Magick.NET-Q16-HDRI-OpenMP-x64 --version 14.10.3
NuGet
Update Magick.NET-Q8-OpenMP-x64 to 14.10.3 or laterdotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.10.3
NuGet
Update Magick.NET-Q8-arm64 to 14.10.3 or laterdotnet add package Magick.NET-Q8-arm64 --version 14.10.3
NuGet
Update Magick.NET-Q8-x64 to 14.10.3 or laterdotnet add package Magick.NET-Q8-x64 --version 14.10.3
NuGet
Update Magick.NET-Q16-HDRI-OpenMP-arm64 to 14.10.3 or laterdotnet 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-125Out-of-bounds ReadMITRE
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
Low
Integrity
None
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
References
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-42p5-62qq-mmh7WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-25987ADVISORY
- https://github.com/ImageMagick/ImageMagick/commit/bbae0215e1b76830509fd20e6d37c0dd7e3e4c3aWEB
- https://github.com/ImageMagick/ImageMagickPACKAGE
- https://github.com/dlemstra/Magick.NET/releases/tag/14.10.3WEB
Frequently Asked Questions
- What is CVE-2026-25987?
- ImageMagick has a heap buffer over-read in its MAP image 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-2026-25987?
- CVE-2026-25987 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-2026-25987 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-42p5-62qq-mmh7
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- CVE-2026-25984LOW
ImageMagick: Integer Overflow in PSB (PSD v2) RLE decoding path causes heap Out of Bounds reads for 32-bit builds
- CVE-2026-56376LOW
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