CVE-2026-33900

Description

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.

How to fix CVE-2026-33900

To remediate CVE-2026-33900, upgrade the affected package to a fixed version below.

• —upgrade to 8:6.9.11.60+dfsg-1.3+deb11u12 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-2026-33900 being exploited?

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

Affected packages (7)

• from 0, < 8:6.9.11.60+dfsg-1.3+deb11u12
• 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-2026-33900
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2026-33900
• PATCHgithub.com/ImageMagick/ImageMagick
• WEBgithub.com/dlemstra/Magick.NET/releases/tag/14.12.0