What’s Vulnerable › Vulnerabilities
CVE-2026-5437: Out-of-Bounds Read in DicomStreamReader
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-04-09 · updated 2026-10-26
- Weakness: CWE-125
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.
Affected products
- orthanc-server orthanc: before 1.12.11 — fixed in 1.12.11
How to fix
Upgrade to a fixed version: orthanc-server orthanc 1.12.11. Check the vendor advisory for mitigations.
References
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