{"id":"CVE-2026-87020","state":"PUBLISHED","title":"Orthanc DICOM Server Integer Overflow or Wraparound","description":"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.","publishedAt":"2026-09-11T14:11:13.098Z","updatedAt":"2026-09-11T14:57:02.877Z","severity":{"score":7.2,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","source":"icscert"},"assigner":"icscert","products":["Orthanc DICOM Server"],"affected":[{"vendor":"Orthanc","product":"DICOM Server","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.13.0","versionType":"custom"},{"version":"1.13.0","status":"unaffected"}]}],"references":["https://orthanc.uclouvain.be/downloads/index.html","https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-253-02","https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-253-02.json"],"weaknesses":["CWE-190"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/87xxx/CVE-2026-87020.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-87020","state":"PUBLISHED","datePublished":"2026-09-11T14:11:13.098Z","dateUpdated":"2026-09-11T14:57:02.877Z","assignerShortName":"icscert","assignerOrgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateReserved":"2026-09-08T17:11:53.753Z"},"containers":{"cna":{"title":"Orthanc DICOM Server Integer Overflow or Wraparound","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Orthanc","product":"DICOM Server","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.13.0","versionType":"custom"},{"version":"1.13.0","status":"unaffected"}]}],"references":[{"url":"https://orthanc.uclouvain.be/downloads/index.html"},{"url":"https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-253-02"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-253-02.json"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":8.1,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":7.2,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-190","lang":"en","description":"CWE-190","type":"CWE"}]}],"providerMetadata":{"shortName":"icscert","orgId":"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6","dateUpdated":"2026-09-11T14:11:13.098Z"},"solutions":[{"lang":"en","value":"Orthanc recommends users update to v1.13.0. \n https://orthanc.uclouvain.be/downloads/index.html","supportingMedia":[{"type":"text/html","base64":false,"value":"<span>Orthanc recommends users update to v1.13.0.&nbsp;</span><br><a href=\"https://orthanc.uclouvain.be/downloads/index.html\">https://orthanc.uclouvain.be/downloads/index.html</a>"}]}],"credits":[{"lang":"en","value":"Andrej Tomci reported this vulnerability to CISA.","type":"finder"}],"source":{"advisory":"ICSMA-26-253-02","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-87020","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-11T14:51:25.708590Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-11T14:57:02.877Z"}}]}}}