View CSAF Summary Successful exploitation of this vulnerability could allow an authenticated remote attacker to write past the end of a heap allocation when Orthanc decodes an attacker-supplied PNG or JPEG image, resulting in a crash of the Orthanc process and a denial-of-service condition. The following versions of Orthanc DICOM Server are affected: Orthanc DICOM Server <1.13.0. (CVE-2026-87020) CVSS Vendor Equipment Vulnerabilities v3 8.1 Orthanc Orthanc DICOM Server Integer Overflow or Wraparound Background Critical Infrastructure Sectors: Healthcare and Public Health Countries/Areas Deployed: Worldwide Company Headquarters Location: Belgium Vulnerabilities Expand All + CVE-2026-87020 An integer overflow in a specified pitch and buffer-size computation leads to a heap out-of-bounds write when Orthanc decodes an attacker-supplied PNG. View CVE Details Affected Products Orthanc DICOM Server Vendor: Orthanc Product Version: Orthanc DICOM Server: <1.13.0. Product Status: known_affected Remediations Mitigation Orthanc recommends users update to v1.13.0.  https://orthanc.uclouvain.be/downloads/index.html Relevant CWE: CWE-190 Integer Overflow or Wraparound Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.1 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H 4.0 7.2 HIGH ...