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CVE-2026-5442

9.8 critical SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 1

  1. First seenCVSS 9.8 · orthanc-serverNVD modified 2026-10-26 21:10

Affected (CPE criteria) 1

  • cpe:2.3:a:orthanc-server:orthanc:*:*:*:*:*:*:*:*

References 3