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CVE-2026-33900

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

Published: 4/13/2026 Last updated: 4/14/2026 Reserved: 3/24/2026

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.

CNA assigner: GitHub_M (a0819718-46f1-4df5-94e2-005712e83aaa) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 5.9 Medium CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Opam packages affected (2)

conf-libMagickCore ocsigen-start

Products affected (1)

Product Vendor Version
ImageMagick ImageMagick n/a

References (4)