{"id":"CVE-2026-87020","title":"An integer overflow in a specified pitch and buffer-size computation leads to a heap out-of-bounds write when Orthanc DICOM Server decodes an attacker-supplied PNG.","summary":"An integer overflow in a specified pitch and buffer-size computation leads to a heap out-of-bounds write when Orthanc DICOM Server decodes an attacker-supplied PNG.","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","cwe":["CWE-190"],"vendor":"Orthanc","product":"DICOM Server","affected":["dicom_server < 1.13.0"],"published":"2026-09-11","updated":"2026-09-18","sourceUpdated":"2026-09-18T19:40:31.053","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-87020","references":[{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-253-02.json","label":"ics-cert@hq.dhs.gov"},{"url":"https://orthanc.uclouvain.be/downloads/index.html","label":"ics-cert@hq.dhs.gov"},{"url":"https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-253-02","label":"ics-cert@hq.dhs.gov"}],"tags":["nvd","cve.org"],"epss":0.0056,"epssPercentile":0.44265,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-11T14:51:25.708590Z"},"ingestedAt":"2026-09-11T16:45:47.861Z","slug":"CVE-2026-87020","body":"## Overview\n\nAn integer overflow in a specified pitch and buffer-size computation leads to a heap out-of-bounds write when Orthanc DICOM Server decodes an attacker-supplied PNG.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}