CVE-2026-5442
CRITICAL EPSS 44.2%
Published Apr 9, 20262mo ago · Modified Jun 17, 20262w ago
9.8 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 DICOM image decoder. Dimension fields are encoded using Value Representation (VR) Unsigned Long (UL), instead of the expected VR Unsigned Short (US), which allows extremely large dimensions to be processed. This causes an integer overflow during frame size calculation and results in out-of-bounds memory access during image decoding.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
44.2% 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.