Out-of-bounds read in Orthanc - CVE-2026-5437
Published: April 9, 2026
Vulnerability identifier: #VU125668
CSH Severity: Low
CVSS v4: 5.1 [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]
CVE-ID: CVE-2026-5437
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Orthanc
How to mitigate CVE-2026-5437
Install security update from vendor's website.
Orthanc - update to 1.12.11