High severity · published Mar 26, 2026
CVE-2026-3650
Grassroots DICOM Missing release of memory after effective lifetime
7.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GD
In the news
VulnerabilityHigh
Grassroots DICOM (GDCM)
View CSAF Summary Successful exploitation of this vulnerability could allow an attacker to send a specially crafted file, and when parsed, could result in a denial-of-service condition. The following versions of Grassroots DICOM (GDCM) are affected: Grassroots DICOM (GDCM) 3.2.2 (CVE-2026-3650) CVSS Vendor Equipment Vulnerabilities v3 7.5 Grassroots Grassroots DICOM (GDCM) Missing Release of Memory after Effective Lifetime Background Critical Infrastructure Sectors: Healthcare and Public Health Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-3650 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. View CVE Details Affected Products Grassroots DICOM (GDCM) Vendor: Grassroots Product Version: Grassroots Grassroots DICOM (GDCM): 3.2.2 Product Status: known_affected Remediations Mitigation The maintainer of Grassroots DICOM (GDCM) has not responded to requests to work with CISA to mitigate this vulnerability. For update information refer to the software page ...
Mar 24, 2026·CISA Advisories