Vulnerability intelligence

CVE-2026-5445

Orthanc DICOM Server

An out-of-bounds read vulnerability exists in the `DecodeLookupTable` function within `DicomImageDecoder.cpp`. The lookup-table decoding logic used for `PALETTE COLOR` images does not validate pixel indices against the lookup table size. Crafted images containing indices larger than the palette size cause the decoder to read beyond allocated lookup table memory and expose heap contents in the output image.

CVSS Score

9.1

Critical

EPSS — Exploit Probability

0.7%

Riskier than 50% of all CVEs · checked 2026-09-09

Exploitation

Not in CISA KEV

KEV does not include every exploited vulnerability

Remediation

unknown

Check vendor advisories