CVE-2026-5437

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

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

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Una vulnerabilidad de lectura fuera de límites existe en ’DicomStreamReader’ durante el análisis de meta-cabeceras DICOM. Al procesar estructuras de metadatos malformadas, el analizador puede leer más allá de los límites del búfer de metadatos asignado. Aunque este problema no suele bloquear el servidor ni exponer datos directamente al atacante, refleja una validación de entrada insuficiente en la lógica de análisis.

Information

Published : 2026-04-09 15:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-5437

Mitre link : CVE-2026-5437

CVE.ORG link : CVE-2026-5437

JSON object : View

Products Affected

orthanc-server

orthanc

CWE

CWE-125

Out-of-bounds Read

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