CVE-2026-5441: An out-of-bounds read vulnerability exists in the `DecodePsmctRle1` function of `DicomImageDecoder.cpp`. The…

CVE-2026-5441 · Severity: high · CVSS 7.1 · Published 2026-04-09

An out-of-bounds read vulnerability exists in the `DecodePsmctRle1` function of `DicomImageDecoder.cpp`. The `PMSCT_RLE1` decompression routine, which decodes the proprietary Philips Compression format, does not properly validate escape markers placed near the end of the compressed data stream. A crafted sequence at the end of the buffer can cause the decoder to read beyond the allocated memory region and leak heap data into the rendered image output.

Technologies: Orthanc-Server Orthanc. Vendors: Orthanc-Server.

Quick answers

Is CVE-2026-5441 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-5441 being exploited in the wild.
How severe is CVE-2026-5441?
High severity, with a CVSS score of 7.1, published 9 April 2026.
Which products and versions are affected?
Orthanc-Server Orthanc. The advisory does not name versions.
Is there a fix for CVE-2026-5441?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-5441?
Check whether you run Orthanc-Server Orthanc. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Orthanc-Server Orthanc

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