What’s Vulnerable › Vulnerabilities

CVE-2026-34238: ImageMagick: Integer overflow in despeckle operation causes heap buffer overflow on 32-bit builds

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-13 · updated 2026-06-17
• Weakness: CWE-190

Description

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below both 7.1.2-19 and 6.9.13-44, an integer overflow in the despeckle operation causes a heap buffer overflow on 32-bit builds that will result in an out of bounds write. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.

Affected products

• ImageMagick: before 6.9.13-44; from 7.0.0-0 before 7.1.2-19 — fixed in 6.9.13-44, 7.1.2-19

How to fix

Upgrade to a fixed version: ImageMagick 6.9.13-44, 7.1.2-19. Check the vendor advisory for mitigations.

References

• https://github.com/ImageMagick/ImageMagick/commit/bcd8519c70ecd9ebbc180920f2cf97b267d1f440
• https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19
• https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-26qp-ffjh-2x4v
• https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0

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