CVE-2026-5437
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductOrthanc
PublishedApr 9, 2026
First seenApr 9, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- orthanc-server orthanc1.12.11 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| orthanc-server orthanc | v < 1.12.11 | 1.12.11 |
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