{"id":"CVE-2026-83646","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-83646","generatedAt":"2026-10-28T01:41:52.180Z","title":"Url redirection to untrusted site ('open redirect') in Active Directory Federation Services (AD FS) allows an authorized attacker to perform spoofing over a network.","description":"Url redirection to untrusted site ('open redirect') in Active Directory Federation Services (AD FS) allows an authorized attacker to perform spoofing over a network.","published":"2026-10-13T19:20:06.000Z","lastModified":"2026-10-16T16:21:12.000Z","status":"Awaiting Analysis","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"3.1","score":4.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-601"],"affected":[],"epss":{"score":0.00417,"percentile":0.3574,"date":"2026-10-26","history":[{"date":"2026-10-14","score":0.00368,"percentile":0.29041}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.42%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-13T19:20:06.000Z","detail":{"score":"4.8","severity":"MEDIUM","publishedAt":"2026-10-13T19:20:05.650Z"},"summary":"New CVE, medium severity (CVSS 4.8)."}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83646","source":"secure@microsoft.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-83646","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."}