{"schemaVersion":3,"id":"CVE-2025-20152","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A vulnerability in the RADIUS message processing feature of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.\n\nThis vulnerability is due to improper handling of certain RADIUS requests. An attacker could exploit this vulnerability by sending a specific authentication request to a network access device (NAD) that uses Cisco ISE for authentication, authorization, and accounting (AAA). A successful exploit could allow the attacker to cause Cisco ISE to reload.","dates":{"published":"2025-05-21T16:19:33.589Z","modified":"2025-05-21T19:27:50.972Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.6,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":8.6,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":8.6,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00702,"percentile":0.52315,"severity":"low","asOf":"2026-10-18T00:00:00.000Z","change":{"pp":0.0040000000000000105,"baselineDate":"2026-09-18T00:00:00.000Z","baselineScore":0.00698},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00702,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00702,"percentile":0.52315}],"last30":[{"date":"2026-09-18T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00698,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00702,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00702,"percentile":0.52315}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-125","name":"Out-of-bounds Read","description":"The product reads data past the end, or before the beginning, of the intended buffer.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/125.html"}],"affected":[{"vendor":"cisco","product":"cisco identity services engine software","name":"Cisco Identity Services Engine Software","label":"cisco identity services engine software","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"3.4.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"3.4.0","eol":null,"hubHref":"/vendor/cisco/cisco_identity_services_engine_software"},{"vendor":"cisco","product":"identity_services_engine","name":"identity services engine","label":"identity_services_engine","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"3.4.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"3.4.0","eol":null,"hubHref":"/vendor/cisco/identity_services_engine"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-restart-ss-uf986G2Q","label":"sec.cloudapps.cisco.com/security/…","hostname":"sec.cloudapps.cisco.com","tags":["Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2025-05-21T16:19:33.589Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-05-21T19:27:50.972Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":35,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T12:50:48.156Z","stale":false,"partial":false}}