Is CVE-2026-46559 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-46559 being exploited in the wild.

How severe is CVE-2026-46559?

Medium severity, with a CVSS score of 4, published 10 June 2026.

Which products and versions are affected?

Magick.NET-Q16-AnyCPU (NuGet) ECOSYSTEM:introduced=0,fixed=14.13.1; Magick.NET-Q16-arm64 (NuGet) ECOSYSTEM:introduced=0,fixed=14.13.1; Magick.NET-Q16-HDRI-AnyCPU (NuGet) ECOSYSTEM:introduced=0,fixed=14.13.1; Magick.NET-Q16-HDRI-arm64 (NuGet) ECOSYSTEM:introduced=0,fixed=14.13.1; and 14 more.

Is there a fix for CVE-2026-46559?

Yes. Magick.NET-Q16-AnyCPU (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-x86 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-x86 (NuGet): upgrade to 14.13.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-46559 attacked?

It is attacked with local access, in a software library.

Am I affected by CVE-2026-46559?

Check whether you run Magick.NET-Q16-AnyCPU (NuGet), Magick.NET-Q16-arm64 (NuGet), Magick.NET-Q16-HDRI-AnyCPU (NuGet) or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-46559: ImageMagick heap buffer overwrite in JP2 encoder

CVE-2026-46559 · Severity: medium · CVSS 4 · Published 2026-06-10

ImageMagick is a widely used open-source tool for editing and converting digital images. A flaw in how it handles JP2 (JPEG 2000) images could allow a local attacker to cause a minor memory error by providing specific image processing options. This could lead to a program crash, potentially disrupting automated image processing workflows.

Quick answers

Is CVE-2026-46559 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-46559 being exploited in the wild.
How severe is CVE-2026-46559?: Medium severity, with a CVSS score of 4, published 10 June 2026.
Which products and versions are affected?: Magick.NET-Q16-AnyCPU (NuGet) ECOSYSTEM:introduced=0,fixed=14.13.1; Magick.NET-Q16-arm64 (NuGet) ECOSYSTEM:introduced=0,fixed=14.13.1; Magick.NET-Q16-HDRI-AnyCPU (NuGet) ECOSYSTEM:introduced=0,fixed=14.13.1; Magick.NET-Q16-HDRI-arm64 (NuGet) ECOSYSTEM:introduced=0,fixed=14.13.1; and 14 more.
Is there a fix for CVE-2026-46559?: Yes. Magick.NET-Q16-AnyCPU (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q16-x86 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-x64 (NuGet): upgrade to 14.13.1 or later; Magick.NET-Q8-x86 (NuGet): upgrade to 14.13.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-46559 attacked?: It is attacked with local access, in a software library.
Am I affected by CVE-2026-46559?: Check whether you run Magick.NET-Q16-AnyCPU (NuGet), Magick.NET-Q16-arm64 (NuGet), Magick.NET-Q16-HDRI-AnyCPU (NuGet) or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Magick.NET-Q16-AnyCPU (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q16-AnyCPU --version 14.13.1

Magick.NET-Q16-arm64 (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q16-arm64 --version 14.13.1

Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.13.1

Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.13.1

Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.13.1

Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q16-HDRI-OpenMP-x64 --version 14.13.1

Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.13.1

Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.13.1

Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.13.1

Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.13.1

Magick.NET-Q16-x64 (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q16-x64 --version 14.13.1

Magick.NET-Q16-x86 (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q16-x86 --version 14.13.1

Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q8-AnyCPU --version 14.13.1

Magick.NET-Q8-arm64 (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q8-arm64 --version 14.13.1

Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.13.1

Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.13.1

Magick.NET-Q8-x64 (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q8-x64 --version 14.13.1

Magick.NET-Q8-x86 (NuGet): upgrade to 14.13.1 or later

dotnet add package Magick.NET-Q8-x86 --version 14.13.1

Technical details

An off-by-one error (CWE-193) in the JP2 encoder of ImageMagick leads to a single-byte heap buffer overwrite (CWE-787). The vulnerability is triggered by an incorrect bounds check when specific image processing options are used during JP2 conversion. An attacker with local access can exploit this to cause a denial-of-service (application crash) by providing a specially crafted set of options or image data. The issue is fixed in versions 6.9.13-48 and 7.1.2-23.

Affected products

ImageMagick ImageMagick < 6.9.13-48, < 7.1.2-23

Identifiers

CVE-2026-46559
GHSA-533m-3wf6-c33v

Timeline

2026-05-17: advisory: Initial GitHub security advisory published
2026-06-10: disclosed: NVD publication date

References

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-533m-3wf6-c33v

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