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Description

A memory leak exists in the Grassroots DICOM library (GDCM). The bug occurs when parsing malformed DICOM files with non-standard VR types in file meta information. The vulnerability leads to vast memory allocations and resource depletion, triggering a denial-of-service condition. A maliciously crafted file can fill the heap in a single read operation without properly releasing it.

PUBLISHED Reserved 2026-03-06 | Published 2026-03-26 | Updated 2026-03-27 | Assigner icscert




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-401

Product status

Default status
unaffected

3.2.2 (custom)
affected

Credits

Volodymyr Bihunenko, Mykyta Mudryi, and Markiian Chaklosh of ARIMLABS reported this vulnerability to CISA finder

References

sourceforge.net/projects/gdcm/

www.cisa.gov/...vents/ics-medical-advisories/icsma-26-083-01

github.com/.../csaf_files/OT/white/2026/icsma-26-083-01.json

cve.org (CVE-2026-3650)

nvd.nist.gov (CVE-2026-3650)

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