Is CVE-2026-56373 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-56373 being exploited in the wild.

How severe is CVE-2026-56373?

Low severity, with a CVSS score of 3.7, published 10 July 2026.

Which products and versions are affected?

Magick.NET-Q16-AnyCPU (NuGet) ECOSYSTEM:introduced=0,fixed=14.10.3; Magick.NET-Q16-arm64 (NuGet) ECOSYSTEM:introduced=0,fixed=14.10.3; Magick.NET-Q16-HDRI-AnyCPU (NuGet) ECOSYSTEM:introduced=0,fixed=14.10.3; Magick.NET-Q16-HDRI-arm64 (NuGet) ECOSYSTEM:introduced=0,fixed=14.10.3; and 15 more.

Is there a fix for CVE-2026-56373?

Yes. Magick.NET-Q16-AnyCPU (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-OpenMP-x86 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-x86 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-x86 (NuGet): upgrade to 14.10.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-56373 attacked?

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

Am I affected by CVE-2026-56373?

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-2026-56373: ImageMagick use after free in PDB decoder

CVE-2026-56373 · Severity: low · CVSS 3.7 · Published 2026-07-10

ImageMagick is a widely used software suite for displaying, converting, and editing image files. A vulnerability in its PDB (Palm Database) file decoder could allow a specially crafted file to cause the application to crash or behave unexpectedly. This could lead to a temporary service outage for applications that automatically process user-uploaded images.

Quick answers

Is CVE-2026-56373 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-56373 being exploited in the wild.
How severe is CVE-2026-56373?: Low severity, with a CVSS score of 3.7, published 10 July 2026.
Which products and versions are affected?: Magick.NET-Q16-AnyCPU (NuGet) ECOSYSTEM:introduced=0,fixed=14.10.3; Magick.NET-Q16-arm64 (NuGet) ECOSYSTEM:introduced=0,fixed=14.10.3; Magick.NET-Q16-HDRI-AnyCPU (NuGet) ECOSYSTEM:introduced=0,fixed=14.10.3; Magick.NET-Q16-HDRI-arm64 (NuGet) ECOSYSTEM:introduced=0,fixed=14.10.3; and 15 more.
Is there a fix for CVE-2026-56373?: Yes. Magick.NET-Q16-AnyCPU (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-OpenMP-x86 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q16-x86 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-x64 (NuGet): upgrade to 14.10.3 or later; Magick.NET-Q8-x86 (NuGet): upgrade to 14.10.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-56373 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-56373?: 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 14.10.3 or later

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

Magick.NET-Q16-arm64 (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q16-HDRI-AnyCPU (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q16-HDRI-arm64 (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q16-HDRI-x64 (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q16-HDRI-x86 (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q16-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q16-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q16-OpenMP-x86 (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q16-x64 (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q16-x86 (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q8-AnyCPU (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q8-arm64 (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q8-OpenMP-arm64 (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q8-OpenMP-x64 (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q8-x64 (NuGet): upgrade to 14.10.3 or later

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

Magick.NET-Q8-x86 (NuGet): upgrade to 14.10.3 or later

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

Technical details

A use-after-free (UAF) vulnerability exists in the PDB decoder of ImageMagick. The flaw is triggered when a memory allocation fails, causing the decoder to utilize a stale pointer. An attacker can exploit this by providing a malicious PDB file for processing, which may result in a denial-of-service (crash) or a single zero-byte write to freed memory. The attack vector is network-based but requires high complexity to successfully trigger the specific memory failure condition. The issue is resolved in versions 7.1.2-15 and 6.9.13-40.

Affected products

ImageMagick ImageMagick < 7.1.2-15, < 6.9.13-40

Identifiers

CVE-2026-56373
GHSA-3j4x-rwrx-xxj9

Timeline

2026-02-23: advisory: Initial GitHub Security Advisory published
2026-07-10: disclosed: CVE published to NVD

References

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