CVE-2026-40312 PUBLISHED

ImageMagick: Off-by-One in MSL decoder could result in crash

Assigner: GitHub_M
Reserved: 10.04.2026 Published: 13.04.2026 Updated: 13.04.2026

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, an off by one error in the MSL decoder could result in a crash when a malicous MSL file is read. This issue has been fixed in version 7.1.2-19.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS Score: 6.2

Attack Vector	Local	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

References

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-5xg3-585r-9jh5
https://github.com/ImageMagick/ImageMagick/commit/2a06c7be3bba3326caf8b7a8d1fa2e0d4b88998d
https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19
https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0

Problem Types

CWE-193: Off-by-one Error CWE