What’s Vulnerable › Vulnerabilities
CVE-2026-46521: ImageMagick: Heap Buffer Over-Write in MIFF encoder when using LZMA compression
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-06-10 · updated 2026-07-23
- Weakness: CWE-131
Description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-23, when using LZMA compression in the MIFF encoder an out of bounds write can occur due to a missing check. This issue has been patched in versions 6.9.13-48 and 7.1.2-23.
Affected products
- ImageMagick: before 6.9.13-48; from 7.0.0-0 before 7.1.2-23 — fixed in 6.9.13-48, 7.1.2-23
How to fix
Upgrade to a fixed version: ImageMagick 6.9.13-48, 7.1.2-23. Check the vendor advisory for mitigations.
References
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