CVE-2026-5442CRITICAL 9.8EPSS p43.9%

CVE-2026-5442CVE-2026-5442

Description

A heap buffer overflow vulnerability exists in the DICOM image decoder. Dimension fields are encoded using Value Representation (VR) Unsigned Long (UL), instead of the expected VR Unsigned Short (US), which allows extremely large dimensions to be processed. This causes an integer overflow during frame size calculation and results in out-of-bounds memory access during image decoding.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.60% probability of exploitation · percentile 43.9% · 2026-06-19T12:03:05Z
Published2026-04-09
Last modified2026-04-14

Underlying weaknesses· 1

CWE-787

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 Writecwe-7870%live

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