{"id":"CVE-2026-5443","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-5443","generatedAt":"2026-10-28T07:04:16.139Z","title":"A heap buffer overflow vulnerability exists during the decoding of `PALETTE COLOR` DICOM images.","description":"A heap buffer overflow vulnerability exists during the decoding of `PALETTE COLOR` DICOM images. Pixel length validation uses 32-bit multiplication for width and height calculations. If these values overflow, the validation check incorrectly succeeds, allowing the decoder to read and write to memory beyond allocated buffers.","published":"2026-04-09T15:16:17.000Z","lastModified":"2026-10-26T21:10:00.000Z","status":"Analyzed","sourceIdentifier":"cret@cert.org","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-787"],"affected":["orthanc-server/orthanc"],"epss":{"score":0.0057,"percentile":0.46988,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.57%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://kb.cert.org/vuls/id/536588","tags":["Third Party Advisory","VDB Entry"],"source":"cret@cert.org"},{"url":"https://www.machinespirits.de/","tags":["Not Applicable"],"source":"cret@cert.org"},{"url":"https://www.orthanc-server.com/","tags":["Product"],"source":"cret@cert.org"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-5443","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}