CVE-2026-5444
HIGH EPSS 5.8%
Published Apr 9, 20262mo ago · Modified Jun 17, 20262w ago
7.1 CVSS 3.1
Published Apr 9, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago
Description
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
5.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-787 Out-of-bounds Write Memory Safety
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| orthanc-server | orthanc | * | <1.12.11 |
References 3
- kb.cert.org https://kb.cert.org/vuls/id/536588
- machinespirits.de https://www.machinespirits.de/
- orthanc-server.com https://www.orthanc-server.com/
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.