Is CVE-2026-33901 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-33901 being exploited in the wild.

How severe is CVE-2026-33901?

High severity, with a CVSS score of 7.5, published 13 April 2026.

Which products and versions are affected?

Dlemstra Magick.NET < 14.12.0; Magick.NET-Q16-AnyCPU (NuGet) < 14.12.0, ECOSYSTEM:introduced=0,fixed=14.12.0; Magick.NET-Q16-arm64 (NuGet) < 14.12.0, ECOSYSTEM:introduced=0,fixed=14.12.0; Magick.NET-Q16-HDRI-AnyCPU (NuGet) < 14.12.0, ECOSYSTEM:introduced=0,fixed=14.12.0; and 16 more.

Is there a fix for CVE-2026-33901?

Yes. Magick.NET-Q16-AnyCPU (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-x86 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-x86 (NuGet): upgrade to 14.12.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-33901 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-33901?

Check whether you run Dlemstra Magick.NET, Magick.NET-Q16-AnyCPU (NuGet), Magick.NET-Q16-arm64 (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-2026-33901: ImageMagick heap buffer overflow in MVG decoder

Q: Which products and versions are affected?

Dlemstra Magick.NET < 14.12.0; Magick.NET-Q16-AnyCPU (NuGet) < 14.12.0, ECOSYSTEM:introduced=0,fixed=14.12.0; Magick.NET-Q16-arm64 (NuGet) < 14.12.0, ECOSYSTEM:introduced=0,fixed=14.12.0; Magick.NET-Q16-HDRI-AnyCPU (NuGet) < 14.12.0, ECOSYSTEM:introduced=0,fixed=14.12.0; and 16 more.

Q: Is there a fix for CVE-2026-33901?

Yes. Magick.NET-Q16-AnyCPU (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-x86 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-x86 (NuGet): upgrade to 14.12.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Q: How is CVE-2026-33901 attacked?

It is attacked over the network, in a software library.

Q: Am I affected by CVE-2026-33901?

Check whether you run Dlemstra Magick.NET, Magick.NET-Q16-AnyCPU (NuGet), Magick.NET-Q16-arm64 (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-2026-33901 · Severity: high · CVSS 7.5 · Published 2026-04-13

ImageMagick, a widely used open-source tool for image processing, is vulnerable to a flaw that occurs when handling specially crafted image files. An attacker could exploit this to cause a denial-of-service condition, potentially crashing applications or services that rely on ImageMagick to process user-uploaded images. This could disrupt business operations and service availability for platforms that automate image manipulation.

Quick answers

Is CVE-2026-33901 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-33901 being exploited in the wild.
How severe is CVE-2026-33901?: High severity, with a CVSS score of 7.5, published 13 April 2026.
Which products and versions are affected?: Dlemstra Magick.NET < 14.12.0; Magick.NET-Q16-AnyCPU (NuGet) < 14.12.0, ECOSYSTEM:introduced=0,fixed=14.12.0; Magick.NET-Q16-arm64 (NuGet) < 14.12.0, ECOSYSTEM:introduced=0,fixed=14.12.0; Magick.NET-Q16-HDRI-AnyCPU (NuGet) < 14.12.0, ECOSYSTEM:introduced=0,fixed=14.12.0; and 16 more.
Is there a fix for CVE-2026-33901?: Yes. Magick.NET-Q16-AnyCPU (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q16-x86 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-x64 (NuGet): upgrade to 14.12.0 or later; Magick.NET-Q8-x86 (NuGet): upgrade to 14.12.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-33901 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-33901?: Check whether you run Dlemstra Magick.NET, Magick.NET-Q16-AnyCPU (NuGet), Magick.NET-Q16-arm64 (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 14.12.0 or later

dotnet add package Magick.NET-Q16-AnyCPU --version 14.12.0

Magick.NET-Q16-arm64 (NuGet): upgrade to 14.12.0 or later

dotnet add package Magick.NET-Q16-arm64 --version 14.12.0

Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.12.0 or later

dotnet add package Magick.NET-Q16-HDRI-AnyCPU --version 14.12.0

Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.12.0 or later

dotnet add package Magick.NET-Q16-HDRI-arm64 --version 14.12.0

Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later

dotnet add package Magick.NET-Q16-HDRI-OpenMP-arm64 --version 14.12.0

Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.12.0 or later

dotnet add package Magick.NET-Q16-HDRI-x64 --version 14.12.0

Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.12.0 or later

dotnet add package Magick.NET-Q16-HDRI-x86 --version 14.12.0

Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later

dotnet add package Magick.NET-Q16-OpenMP-arm64 --version 14.12.0

Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.12.0 or later

dotnet add package Magick.NET-Q16-OpenMP-x64 --version 14.12.0

Magick.NET-Q16-x64 (NuGet): upgrade to 14.12.0 or later

dotnet add package Magick.NET-Q16-x64 --version 14.12.0

Magick.NET-Q16-x86 (NuGet): upgrade to 14.12.0 or later

dotnet add package Magick.NET-Q16-x86 --version 14.12.0

Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.12.0 or later

dotnet add package Magick.NET-Q8-AnyCPU --version 14.12.0

Magick.NET-Q8-arm64 (NuGet): upgrade to 14.12.0 or later

dotnet add package Magick.NET-Q8-arm64 --version 14.12.0

Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.12.0 or later

dotnet add package Magick.NET-Q8-OpenMP-arm64 --version 14.12.0

Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.12.0 or later

dotnet add package Magick.NET-Q8-OpenMP-x64 --version 14.12.0

Magick.NET-Q8-x64 (NuGet): upgrade to 14.12.0 or later

dotnet add package Magick.NET-Q8-x64 --version 14.12.0

Magick.NET-Q8-x86 (NuGet): upgrade to 14.12.0 or later

dotnet add package Magick.NET-Q8-x86 --version 14.12.0

Technical details

A heap-based buffer overflow (CWE-122) exists in the MVG (Magick Vector Graphics) decoder of ImageMagick. The vulnerability is located in the RenderMVGContent function within MagickCore/draw.c, where insufficient bounds checking on the 'q' and 'p' pointers can lead to an out-of-bounds write. A remote, unauthenticated attacker can exploit this by providing a specially crafted image file for processing. Successful exploitation primarily impacts service availability by causing a crash (Denial of Service). The issue is resolved in ImageMagick versions 7.1.2-19 and 6.9.13-44.

Affected products

ImageMagick ImageMagick < 7.1.2-19, < 6.9.13-44
Red Hat Red Hat Enterprise Linux 6 affected
Red Hat Red Hat Enterprise Linux 7 affected

Identifiers

CVE-2026-33901
GHSA-x9h5-r9v2-vcww

Timeline

2026-04-13: disclosed
2026-04-13: advisory
2026-04-13: patched

References

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