{"schemaVersion":3,"id":"CVE-2021-45656","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Certain NETGEAR devices are affected by server-side injection. This affects D6200 before 1.1.00.38, D7000 before 1.0.1.78, R6020 before 1.0.0.48, R6080 before 1.0.0.48, R6050 before 1.0.1.26, JR6150 before 1.0.1.26, R6120 before 1.0.0.66, R6220 before 1.1.0.100, R6230 before 1.1.0.100, R6260 before 1.1.0.78, R6800 before 1.2.0.76, R6900v2 before 1.2.0.76, R6700v2 before 1.2.0.76, R7450 before 1.2.0.76, AC2100 before 1.2.0.76, AC2400 before 1.2.0.76, AC2600 before 1.2.0.76, RBK40 before 2.5.1.16, RBR40 before 2.5.1.16, RBS40 before 2.5.1.16, RBK20 before 2.5.1.16, RBR20 before 2.5.1.16, RBS20 before 2.5.1.16, RBK50 before 2.5.1.16, RBR50 before 2.5.1.16, RBS50 before 2.5.1.16, and RBS50Y before 2.6.1.40.","dates":{"published":"2021-12-26T00:28:09.000Z","modified":"2024-08-04T04:47:01.838Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.8,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:L/AC:L/PR:L/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":7.1,"severity":"high","vector":"CVSS:3.1/AC:L/AV:L/A:N/C:H/I:H/PR:L/S:U/UI:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.8,"severity":"high","vector":"CVSS:3.1/AV:L/AC:L/PR:L/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":4.6,"severity":"medium","vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00324,"percentile":0.23973,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.010999999999999985,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00313},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00324,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00324,"percentile":0.23973}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00313,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00324,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00324,"percentile":0.23973}]},"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-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')","description":"The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.","type":"weakness","status":"Incomplete","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/74.html"}],"affected":[{"vendor":"netgear","product":"ac2100_firmware","name":"ac2100 firmware","label":"ac2100_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.2.0.76","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.2.0.76","eol":null,"hubHref":"/vendor/netgear/ac2100"},{"vendor":"netgear","product":"ac2400_firmware","name":"ac2400 firmware","label":"ac2400_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.2.0.76","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.2.0.76","eol":null,"hubHref":"/vendor/netgear/ac2400"},{"vendor":"netgear","product":"ac2600_firmware","name":"ac2600 firmware","label":"ac2600_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.2.0.76","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.2.0.76","eol":null,"hubHref":"/vendor/netgear/ac2600"},{"vendor":"netgear","product":"d6200_firmware","name":"d6200 firmware","label":"d6200_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.1.00.38","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.1.00.38","eol":null,"hubHref":"/vendor/netgear/d6200"},{"vendor":"netgear","product":"d7000_firmware","name":"d7000 firmware","label":"d7000_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.0.1.78","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.0.1.78","eol":null,"hubHref":"/vendor/netgear/d7000"},{"vendor":"netgear","product":"jr6150_firmware","name":"jr6150 firmware","label":"jr6150_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.0.1.26","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.0.1.26","eol":null,"hubHref":"/vendor/netgear/jr6150"},{"vendor":"netgear","product":"r6020_firmware","name":"r6020 firmware","label":"r6020_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.0.0.48","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.0.0.48","eol":null,"hubHref":"/vendor/netgear/r6020"},{"vendor":"netgear","product":"r6050_firmware","name":"r6050 firmware","label":"r6050_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.0.1.26","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.0.1.26","eol":null,"hubHref":"/vendor/netgear/r6050"},{"vendor":"netgear","product":"r6080_firmware","name":"r6080 firmware","label":"r6080_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.0.0.48","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.0.0.48","eol":null,"hubHref":"/vendor/netgear/r6080"},{"vendor":"netgear","product":"r6120_firmware","name":"r6120 firmware","label":"r6120_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.0.0.66","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.0.0.66","eol":null,"hubHref":"/vendor/netgear/r6120"},{"vendor":"netgear","product":"r6220_firmware","name":"r6220 firmware","label":"r6220_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.1.0.100","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.1.0.100","eol":null,"hubHref":"/vendor/netgear/r6220"},{"vendor":"netgear","product":"r6230_firmware","name":"r6230 firmware","label":"r6230_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.1.0.110","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.1.0.110","eol":null,"hubHref":"/vendor/netgear/r6230"},{"vendor":"netgear","product":"r6260_firmware","name":"r6260 firmware","label":"r6260_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.1.0.78","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.1.0.78","eol":null,"hubHref":"/vendor/netgear/r6260"},{"vendor":"netgear","product":"r6700_firmware","name":"r6700 firmware","label":"r6700_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.2.0.76","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.2.0.76","eol":null,"hubHref":"/vendor/netgear/r6700"},{"vendor":"netgear","product":"r6800_firmware","name":"r6800 firmware","label":"r6800_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.2.0.76","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.2.0.76","eol":null,"hubHref":"/vendor/netgear/r6800"},{"vendor":"netgear","product":"r6900_firmware","name":"r6900 firmware","label":"r6900_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.2.0.76","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.2.0.76","eol":null,"hubHref":"/vendor/netgear/r6900"},{"vendor":"netgear","product":"r7450_firmware","name":"r7450 firmware","label":"r7450_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.2.0.76","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.2.0.76","eol":null,"hubHref":"/vendor/netgear/r7450"},{"vendor":"netgear","product":"rbk20_firmware","name":"rbk20 firmware","label":"rbk20_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 2.5.1.16","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.5.1.16","eol":null,"hubHref":"/vendor/netgear/rbk20"},{"vendor":"netgear","product":"rbk40_firmware","name":"rbk40 firmware","label":"rbk40_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 2.5.1.16","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.5.1.16","eol":null,"hubHref":"/vendor/netgear/rbk40"},{"vendor":"netgear","product":"rbk50_firmware","name":"rbk50 firmware","label":"rbk50_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 2.5.1.16","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.5.1.16","eol":null,"hubHref":"/vendor/netgear/rbk50"},{"vendor":"netgear","product":"rbr20_firmware","name":"rbr20 firmware","label":"rbr20_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 2.5.1.16","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.5.1.16","eol":null,"hubHref":"/vendor/netgear/rbr20"},{"vendor":"netgear","product":"rbr40_firmware","name":"rbr40 firmware","label":"rbr40_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 2.5.1.16","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.5.1.16","eol":null,"hubHref":"/vendor/netgear/rbr40"},{"vendor":"netgear","product":"rbr50_firmware","name":"rbr50 firmware","label":"rbr50_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 2.5.1.16","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.5.1.16","eol":null,"hubHref":"/vendor/netgear/rbr50"},{"vendor":"netgear","product":"rbs20_firmware","name":"rbs20 firmware","label":"rbs20_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 2.5.1.16","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.5.1.16","eol":null,"hubHref":"/vendor/netgear/rbs20"},{"vendor":"netgear","product":"rbs40_firmware","name":"rbs40 firmware","label":"rbs40_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 2.5.1.16","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.5.1.16","eol":null,"hubHref":"/vendor/netgear/rbs40"},{"vendor":"netgear","product":"rbs50_firmware","name":"rbs50 firmware","label":"rbs50_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 2.5.1.16","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.5.1.16","eol":null,"hubHref":"/vendor/netgear/rbs50"},{"vendor":"netgear","product":"rbs50y_firmware","name":"rbs50y firmware","label":"rbs50y_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 2.6.1.40","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.6.1.40","eol":null,"hubHref":"/vendor/netgear/rbs50y"}],"affectedCount":27,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://kb.netgear.com/000064066/Security-Advisory-for-Server-Side-Injection-on-Some-Routers-and-WiFi-Systems-PSV-2019-0140","label":"kb.netgear.com/000064066/…","hostname":"kb.netgear.com","tags":["X Refsource MISC","Patch","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-12-26T00:28:09.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T04:47:01.838Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":31,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T14:21:45.769Z","stale":false,"partial":false}}