Medium 5.9Published Apr 13, 2026

CVE-2026-33900ImageMagick has a Heap overflow caused by integer overflow/wraparound in viff encoder on 32-bit builds

Updated under an hour ago (Oct 27, 2026, 9:23 AM ET)

This data is behind schedule: last updated Oct 27, 2026, 9:20 AM ET. We are working on it.Behind: CVE records (cvelistV5).

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No exploitation reported and no EPSS estimate yet.

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Every CVE for ImageMagick

Exploited in the last 30 days

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.

CVSS: 5.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-190
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Apr 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

ImageMagick ImageMagick imagemagick:imagemagick (from the name)	before 6.9.13-44; before 7.1.2-19	CNA record
imagemagick imagemagick imagemagick:imagemagick	before 6.9.13-44; from 7.0.0-0 before 7.1.2-19	NVD

References

References

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-v67w-737x-v2c9	x-refsource-confirm, vendor-advisory
https://github.com/ImageMagick/ImageMagick/commit/d27b840a61b322419a66d0d192ff56d52498148d	x-refsource-misc, patch
https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19	x-refsource-misc, release-notes
https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.