Government Advisory

Security Flaw Found in Medixant RadiAnt DICOM Medical Imaging Software

CISA · 6 Aug 2026

Key Takeaway If your business uses RadiAnt DICOM or similar medical imaging software, avoid opening files from unverified sources and update to the latest version as soon as a patch is released.

A security flaw has been identified in RadiAnt DICOM, a widely used medical imaging viewer developed by Poland-based company Medixant. The vulnerability affects all versions up to and including 2025.2 and involves an out-of-bounds write issue, which can occur when the software processes a specially crafted DICOM file containing malicious JPEG-compressed image data.

According to CISA, successful exploitation would allow an attacker to crash the application if a user opens the tampered file. While this vulnerability, rated 4.3 on the CVSS v3 scale, is considered low-to-moderate severity, RadiAnt DICOM is used globally within the healthcare and public health sector, meaning disruption to imaging tools could affect clinical workflows if exploited.

Organisations using RadiAnt DICOM, particularly clinics, imaging centres, and healthcare IT providers, should check their software version and monitor for an official patch or update from Medixant. Until a fix is available, staff should be cautious about opening DICOM files from unknown or untrusted sources.

healthcare medical devices vulnerability DICOM CISA

Summarised by CISO AI from CISA. We link back to every original so you can read it yourself.