{"id":"CVE-2026-5444","state":"PUBLISHED","title":"Heap Buffer Overflow in PAM Image Buffer Allocation","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.","publishedAt":"2026-04-09T14:42:30.696Z","updatedAt":"2026-04-14T16:34:57.706Z","severity":{"score":7.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","source":"CISA-ADP"},"assigner":"certcc","products":["Orthanc DICOM Server"],"affected":[{"vendor":"Orthanc","product":"DICOM Server","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.12.10","versionType":"custom"}]}],"references":["https://www.orthanc-server.com/","https://www.machinespirits.de/","https://kb.cert.org/vuls/id/536588"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/5xxx/CVE-2026-5444.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-5444","state":"PUBLISHED","datePublished":"2026-04-09T14:42:30.696Z","dateUpdated":"2026-04-14T16:34:57.706Z","assignerShortName":"certcc","assignerOrgId":"37e5125f-f79b-445b-8fad-9564f167944b","dateReserved":"2026-04-02T19:23:20.072Z"},"containers":{"cna":{"title":"Heap Buffer Overflow in PAM Image Buffer Allocation","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Orthanc","product":"DICOM Server","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.12.10","versionType":"custom"}]}],"references":[{"url":"https://www.orthanc-server.com/"},{"url":"https://www.machinespirits.de/"},{"url":"https://kb.cert.org/vuls/id/536588"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-190 Integer Overflow or Wraparound"}]}],"providerMetadata":{"shortName":"certcc","orgId":"37e5125f-f79b-445b-8fad-9564f167944b","dateUpdated":"2026-04-09T14:42:30.696Z"},"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"VINCE 3.0.35","env":"prod","origin":"https://cveawg.mitre.org/api/cve/CVE-2026-5444"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.1,"attackVector":"LOCAL","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","integrityImpact":"HIGH","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-04-14T15:08:02.200164Z","id":"CVE-2026-5444","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-14T16:34:57.706Z"}}]}}}