CVE-2026-5445CRITICAL 9.1EPSS p46.9%

CVE-2026-5445CVE-2026-5445

Description

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.

Scoring

CVSS 3.19.1 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS0.67% probability of exploitation · percentile 46.9% · 2026-06-19T12:03:05Z
Published2026-04-09
Last modified2026-04-14

Underlying weaknesses· 1

CWE-125

References

  1. https://kb.cert.org/vuls/id/536588
  2. https://www.machinespirits.de/
  3. https://www.orthanc-server.com/

1

TypeTargetConfidenceTier
WeaknessOut-of-bounds Readcwe-1250%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.