{"schemaVersion":3,"id":"CVE-2017-6227","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A vulnerability in the IPv6 stack on Brocade Fibre Channel SAN products running Brocade Fabric OS (FOS) versions before 7.4.2b, 8.1.2 and 8.2.0 could allow an attacker to cause a denial of service (CPU consumption and device hang) condition by sending crafted Router Advertisement (RA) messages to a targeted system.","dates":{"published":"2018-02-08T22:00:00.000Z","modified":"2024-09-16T19:10:54.251Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"3.0","versionLabel":"v3.0","source":"NVD","vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":6.1,"severity":"medium","vector":"AV:A/AC:L/Au:N/C:N/I:N/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00542,"percentile":0.44341,"severity":"low","asOf":"2026-10-18T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-18T00:00:00.000Z","baselineScore":0.00542},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00506,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00542,"percentile":0.44341}],"last30":[{"date":"2026-09-18T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00506,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00542,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00542,"percentile":0.44341}]},"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":[],"affected":[{"vendor":"broadcom","product":"fabric_operating_system","name":"fabric operating system","label":"fabric_operating_system","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 7.4.2b","noFixRecorded":false,"fixedIn":null},{"text":"8.0.0","noFixRecorded":false,"fixedIn":null},{"text":"8.0.1","noFixRecorded":false,"fixedIn":null},{"text":"8.0.2","noFixRecorded":false,"fixedIn":null},{"text":"8.1.0","noFixRecorded":false,"fixedIn":null},{"text":"8.1.1","noFixRecorded":false,"fixedIn":null},{"text":"8.1.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7.4.2b | 8.0.0 | 8.0.1 | 8.0.2 | 8.1.0 | 8.1.1 | 8.1.2","eol":null,"hubHref":"/vendor/broadcom/fabric_operating_system"},{"vendor":"brocade communications systems, inc.","product":"brocade fabric os","name":"Brocade FABRIC OS","label":"brocade fabric os","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"all versions before 7.4.2b, 8.1.2 and 8.2.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"all versions before 7.4.2b, 8.1.2 and 8.2.0","eol":null,"hubHref":"/vendor/brocade_communications_systems_inc/brocade_fabric_os"},{"vendor":"brocade","product":"fabric_os","name":"fabric os","label":"fabric_os","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"8.0.2b2","noFixRecorded":false,"fixedIn":null}],"versionsText":"8.0.2b2","eol":null,"hubHref":"/vendor/brocade/fabric_os"}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2018-526","label":"www.broadcom.com/support/…","hostname":"www.broadcom.com","tags":["X Refsource CONFIRM"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2018-02-08T22:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-09-16T19:10:54.251Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":26,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T09:02:55.402Z","stale":false,"partial":false}}