Integer overflow in Imagemagick
CVE-2026-33900
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 trig…
Vulnerability class: Integer Overflow
EPSS: 0.000 (5.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Imagemagick — versions < 6.9.13-44, < 7.1.2-19
Weakness classification (CWE)
References
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-v67w-737x-v2c9 (x_refsource_CONFIRM)
- https://github.com/ImageMagick/ImageMagick/commit/d27b840a61b322419a66d0d192ff56d52498148d (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 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-33900?
- CVE-2026-33900 is a medium-severity vulnerability in Imagemagick, classified under Integer Overflow or Wraparound. CVSS score: 5.9/10. Published 2026-04-13.
- How severe is CVE-2026-33900?
- Medium severity. CVSS v3 base score is 5.9 out of 10.