CVE-2026-33901 PUBLISHED

ImageMagick has a Heap Buffer Overflow via MVG decoder

Assigner: GitHub_M
Reserved: 24.03.2026 Published: 13.04.2026 Updated: 14.04.2026

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, a heap buffer overflow occurs in the MVG decoder that could result in an out of bounds write when processing a crafted image. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS Score: 7.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	ImageMagick
Product	ImageMagick
Versions	Version < 7.1.2-19 is affected Version < 6.9.13-44 is affected

References

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-x9h5-r9v2-vcww
https://github.com/ImageMagick/ImageMagick/commit/4c72003e9e54a4ebaa938d239e75f5d285527ebe
https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0

Problem Types

CWE-122: Heap-based Buffer Overflow CWE
CWE-787: Out-of-bounds Write CWE