What’s Vulnerable › Vulnerabilities
CVE-2026-25982: ImageMagick Has Heap Out-of-Bounds Read in DCM Decoder (ReadDCMImage)
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-02-24 · updated 2026-06-17
- Weakness: CWE-125
Description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap out-of-bounds read vulnerability exists in the `coders/dcm.c` module. When processing DICOM files with a specific configuration, the decoder loop incorrectly reads bytes per iteration. This causes the function to read past the end of the allocated buffer, potentially leading to a Denial of Service (crash) or Information Disclosure (leaking heap memory into the image). Versions 7.1.2-15 and 6.9.13-40 contain a patch.
Affected products
- ImageMagick: before 6.9.13-40; from 7.0.0-0 before 7.1.2-15 — fixed in 6.9.13-40, 7.1.2-15
How to fix
Upgrade to a fixed version: ImageMagick 6.9.13-40, 7.1.2-15. Check the vendor advisory for mitigations.
References
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