Out-of-bounds read in Orthanc - CVE-2026-5437

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Main Vulnerability Database Vulnerabilities #VU125668

Out-of-bounds read in Orthanc - CVE-2026-5437

Published: April 9, 2026


Vulnerability identifier: #VU125668
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-5437
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Orthanc
Affected software:
Orthanc

Detailed vulnerability description

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to out-of-bounds read in DicomStreamReader when parsing DICOM meta-header metadata structures. A remote attacker can supply a malformed DICOM file to disclose sensitive information.


How to mitigate CVE-2026-5437

Install security update from vendor's website.

Sources