What’s Vulnerable › Vulnerabilities

CVE-2026-23952: ImageMagick has a NULL pointer dereference in MSL parser via <comment> tag before image load

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-01-22 · updated 2026-06-17
• Weakness: CWE-476

Description

ImageMagick is free and open-source software used for editing and manipulating digital images. Versions 14.10.1 and below have a NULL pointer dereference vulnerability in the MSL (Magick Scripting Language) parser when processing <comment> tags before images are loaded. This can lead to DoS attack due to assertion failure (debug builds) or NULL pointer dereference (release builds). This issue is fixed in version 14.10.2.

Affected products

• Dlemstra Magick.Net: before 14.10.2 — fixed in 14.10.2
• ImageMagick: before 6.9.13-38; from 7.0.0-0 before 7.1.2-13 — fixed in 6.9.13-38, 7.1.2-13

How to fix

Upgrade to a fixed version: Dlemstra Magick.Net 14.10.2; ImageMagick 6.9.13-38, 7.1.2-13. Check the vendor advisory for mitigations.

References

• https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-5vx3-wx4q-6cj8
• https://github.com/dlemstra/Magick.NET/releases/tag/14.10.2

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