{"schemaVersion":3,"id":"CVE-2021-45507","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Certain NETGEAR devices are affected by authentication bypass. This affects CBR40 before 2.5.0.24, CBR750 before 4.6.3.6, RBW30 before 2.6.2.2, RBK752 before 3.2.17.12, RBR750 before 3.2.17.12, RBS750 before 3.2.17.12, RBK852 before 3.2.17.12, RBR850 before 3.2.17.12, RBS850 before 3.2.17.12, and RBS40V before 2.6.2.8.","dates":{"published":"2021-12-26T01:02:10.000Z","modified":"2024-08-04T04:39:21.394Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":9.6,"severity":"critical","vector":"CVSS:3.1/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:C/UI:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","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","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":7.5,"severity":"high","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01525,"percentile":0.74296,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.10699999999999998,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.01418},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01525,"percentile":0.74296}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01418,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01525,"percentile":0.74296}]},"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":"netgear","product":"cbr40","name":"CBR40","label":"cbr40","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 2.5.0.24","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.5.0.24","eol":null,"hubHref":"/vendor/netgear/cbr40"},{"vendor":"netgear","product":"cbr750_firmware","name":"cbr750 firmware","label":"cbr750_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 4.6.3.6","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.6.3.6","eol":null,"hubHref":"/vendor/netgear/cbr750"},{"vendor":"netgear","product":"rbk752_firmware","name":"rbk752 firmware","label":"rbk752_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 3.2.17.12","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.2.17.12","eol":null,"hubHref":"/vendor/netgear/rbk752"},{"vendor":"netgear","product":"rbk852_firmware","name":"rbk852 firmware","label":"rbk852_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 3.2.17.12","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.2.17.12","eol":null,"hubHref":"/vendor/netgear/rbk852"},{"vendor":"netgear","product":"rbr750_firmware","name":"rbr750 firmware","label":"rbr750_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 3.2.17.12","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.2.17.12","eol":null,"hubHref":"/vendor/netgear/rbr750"},{"vendor":"netgear","product":"rbr850_firmware","name":"rbr850 firmware","label":"rbr850_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 3.2.17.12","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.2.17.12","eol":null,"hubHref":"/vendor/netgear/rbr850"},{"vendor":"netgear","product":"rbs40v_firmware","name":"rbs40v firmware","label":"rbs40v_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 2.6.2.8","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.6.2.8","eol":null,"hubHref":"/vendor/netgear/rbs40v"},{"vendor":"netgear","product":"rbs750_firmware","name":"rbs750 firmware","label":"rbs750_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 3.2.17.12","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.2.17.12","eol":null,"hubHref":"/vendor/netgear/rbs750"},{"vendor":"netgear","product":"rbs850_firmware","name":"rbs850 firmware","label":"rbs850_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 3.2.17.12","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.2.17.12","eol":null,"hubHref":"/vendor/netgear/rbs850"},{"vendor":"netgear","product":"rbw30_firmware","name":"rbw30 firmware","label":"rbw30_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 2.6.2.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.6.2.2","eol":null,"hubHref":"/vendor/netgear/rbw30"}],"affectedCount":10,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://kb.netgear.com/000064131/Security-Advisory-for-Authentication-Bypass-on-Some-WiFi-Systems-PSV-2020-0487","label":"kb.netgear.com/000064131/…","hostname":"kb.netgear.com","tags":["X Refsource MISC","Patch","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-12-26T01:02:10.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T04:39:21.394Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T15:48:31.302Z","stale":false,"partial":false}}