CVE-2026-5444

A heap buffer overflow vulnerability exists in the PAM image parsing logic. When Orthanc processes a crafted PAM image embedded in a DICOM file, image dimensions are multiplied using 32-bit unsigned arithmetic. Specially chosen values can cause an integer overflow during buffer size calculation, resulting in the allocation of a small buffer followed by a much larger write operation during pixel processing.
References
Link Resource
https://kb.cert.org/vuls/id/536588 Third Party Advisory VDB Entry
https://www.machinespirits.de/ Not Applicable
https://www.orthanc-server.com/ Product
Configurations

Configuration 1 (hide)

cpe:2.3:a:orthanc-server:orthanc:*:*:*:*:*:*:*:*

History

14 Apr 2026, 20:20

Type Values Removed Values Added
First Time Orthanc-server
Orthanc-server orthanc
CPE cpe:2.3:a:orthanc-server:orthanc:*:*:*:*:*:*:*:*
CWE CWE-787
References () https://kb.cert.org/vuls/id/536588 - () https://kb.cert.org/vuls/id/536588 - Third Party Advisory, VDB Entry
References () https://www.machinespirits.de/ - () https://www.machinespirits.de/ - Not Applicable
References () https://www.orthanc-server.com/ - () https://www.orthanc-server.com/ - Product

14 Apr 2026, 17:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.1

09 Apr 2026, 15:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-04-09 15:16

Updated : 2026-04-14 20:20


NVD link : CVE-2026-5444

Mitre link : CVE-2026-5444

CVE.ORG link : CVE-2026-5444


JSON object : View

Products Affected

orthanc-server

  • orthanc
CWE
CWE-787

Out-of-bounds Write