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Description

A heap buffer overflow vulnerability exists in the PAM image parsing logic. When Orthanc processes a crafted PAM image embedded in a DICOM file, image dimensions are multiplied using 32-bit unsigned arithmetic. Specially chosen values can cause an integer overflow during buffer size calculation, resulting in the allocation of a small buffer followed by a much larger write operation during pixel processing.

PUBLISHED Reserved 2026-04-02 | Published 2026-04-09 | Updated 2026-04-14 | Assigner certcc

Problem types

CWE-190 Integer Overflow or Wraparound

Product status

Any version
affected

References

www.orthanc-server.com/

www.machinespirits.de/

kb.cert.org/vuls/id/536588

cve.org (CVE-2026-5444)

nvd.nist.gov (CVE-2026-5444)

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