CVE-2026-33900

MEDIUM

ImageMagick has a Heap overflow caused by integer overflow/wraparound in viff encoder on 32-bit builds

Title source: cna

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, the viff encoder contains an integer truncation/wraparound issue on 32-bit builds that could trigger an out of bounds heap write, potentially causing a crash. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.

References (4)

[X_Refsource_Confirm] https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-v67w-737x-v2c9

[X_Refsource_Misc] https://github.com/ImageMagick/ImageMagick/commit/d27b840a61b322419a66d0d192ff56d52498148d

View Writeup ZIP pw:eip

[X_Refsource_Misc] https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19

[X_Refsource_Misc] https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0

Scores

CVSS v3 5.9

EPSS 0.0002

EPSS Percentile 4.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE

CWE-190

Status published

Products (9)

imagemagick/imagemagick < 6.9.13-44

ImageMagick/ImageMagick < 6.9.13-44

ImageMagick/ImageMagick < 7.1.2-19

nuget/Magick.NET-Q16-AnyCPU 0 - 14.12.0NuGet

nuget/Magick.NET-Q16-HDRI-AnyCPU 0 - 14.12.0NuGet

nuget/Magick.NET-Q16-HDRI-x86 0 - 14.12.0NuGet

nuget/Magick.NET-Q16-x86 0 - 14.12.0NuGet

nuget/Magick.NET-Q8-AnyCPU 0 - 14.12.0NuGet

nuget/Magick.NET-Q8-x86 0 - 14.12.0NuGet

Published Apr 13, 2026

Tracked Since Apr 14, 2026