CVE-2026-40312

Description

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.

How to fix CVE-2026-40312

To remediate CVE-2026-40312, upgrade the affected package to a fixed version below.

• —upgrade to 8:7.1.1.43+dfsg1-1+deb13u8 or later
• —upgrade to 14.12.0 or later
• —upgrade to 14.12.0 or later
• —upgrade to 14.12.0 or later
• —upgrade to 14.12.0 or later
• —upgrade to 14.12.0 or later
• —upgrade to 14.12.0 or later
• —upgrade to 14.12.0 or later
• —upgrade to 14.12.0 or later
• —upgrade to 14.12.0 or later
• —upgrade to 14.12.0 or later
• —upgrade to 14.12.0 or later
• —upgrade to 14.12.0 or later
• —upgrade to 14.12.0 or later
• —upgrade to 14.12.0 or later
• —upgrade to 14.12.0 or later
• —upgrade to 14.12.0 or later
• —upgrade to 14.12.0 or later

Is CVE-2026-40312 being exploited?

Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.

Affected packages (18)

• from 0, < 8:7.1.1.43+dfsg1-1+deb13u8
• from 0, < 14.12.0
• from 0, < 14.12.0
• from 0, < 14.12.0
• from 0, < 14.12.0
• from 0, < 14.12.0
• from 0, < 14.12.0
• from 0, < 14.12.0
• from 0, < 14.12.0
• from 0, < 14.12.0

CVSS scores

References (7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-40312
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2026-40312
• PATCHgithub.com/ImageMagick/ImageMagick
• WEBgithub.com/dlemstra/Magick.NET/releases/tag/14.12.0