CVE-2026-5437

HIGH

Orthanc DICOM Server - Out-of-bounds Read in DicomStreamReader

Title source: llm
STIX 2.1

Description

An out-of-bounds read vulnerability exists in `DicomStreamReader` during DICOM meta-header parsing. When processing malformed metadata structures, the parser may read beyond the bounds of the allocated metadata buffer. Although this issue does not typically crash the server or expose data directly to the attacker, it reflects insufficient input validation in the parsing logic.

Scores

CVSS v3 7.5
EPSS 0.0064
EPSS Percentile 45.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-125
Status published
Products (2)
Orthanc/DICOM Server < 1.12.10
orthanc-server/orthanc < 1.12.11
Published Apr 09, 2026
Tracked Since Apr 09, 2026