CVE-2026-5445
Out-of-Bounds Read in DicomImageDecoder (DecodeLookupTable)
Vexday Risk Score
28Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 9.1EPSS 0.7%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
09 Apr 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Affected products
Orthanc · DICOM ServerWant to know if your infrastructure is exposed to this?
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