CVE-2026-5442

CRITICAL

9.8

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.

Details CVE

Score CVSS v3.19.8

SeveriteCRITICAL

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie4/9/2026

Derniere modification4/14/2026

Sourcenvd

Observations honeypot0

Produits affectes

orthanc-server:orthanc

Faiblesses (CWE)

CWE-787

References

https://kb.cert.org/vuls/id/536588(cret@cert.org)

https://www.machinespirits.de/(cret@cert.org)

https://www.orthanc-server.com/(cret@cert.org)

Correlations IOC

Aucune correlation enregistree

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