CVE-2026-3650 HIGH

CVE-2026-3650: Grassroots DICOM Missing release of memory after effective lifetime

Vendor Grassroots
Product Grassroots DICOM (GDCM)
Weakness CWE-401
Published March 26, 2026
Last update March 27, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 26, 2026 CVE published
March 27, 2026 Record updated