{"schemaVersion":3,"id":"CVE-2021-45608","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Certain D-Link, Edimax, NETGEAR, TP-Link, Tenda, and Western Digital devices are affected by an integer overflow by an unauthenticated attacker. Remote code execution from the WAN interface (TCP port 20005) cannot be ruled out; however, exploitability was judged to be of \"rather significant complexity\" but not \"impossible.\" The overflow is in SoftwareBus_dispatchNormalEPMsgOut in the KCodes NetUSB kernel module. Affected NETGEAR devices are D7800 before 1.0.1.68, R6400v2 before 1.0.4.122, and R6700v3 before 1.0.4.122.","dates":{"published":"2021-12-26T00:37:23.000Z","modified":"2024-08-04T04:47:01.576Z","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":6.5,"severity":"medium","vector":"CVSS:3.1/AC:H/AV:N/A:N/C:H/I:L/PR:N/S:U/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":0.02702,"percentile":0.8581,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0.18899999999999995,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.02513},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.02702,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.02702,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.02702,"percentile":0.8581}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02513,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02513,"pe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Reference (sentinelone.com)","source":"reference","url":"https://www.sentinelone.com/labs/cve-2021-45608-netusb-rce-flaw-in-millions-of-end-user-routers/","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-190","name":"Integer Overflow or Wraparound","description":"The product performs a calculation that can\n         produce an integer overflow or wraparound when the logic\n         assumes that the resulting value will always be larger than\n         the original value. This occurs when an integer value is\n         incremented to a value that is too large to store in the\n         associated representation. When this occurs, the value may\n         become a very small or negative number.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/190.html"}],"affected":[{"vendor":"netgear","product":"d7800_firmware","name":"d7800 firmware","label":"d7800_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.0.1.68","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.0.1.68","eol":null,"hubHref":"/vendor/netgear/d7800"},{"vendor":"netgear","product":"r6400v2_firmware","name":"r6400v2 firmware","label":"r6400v2_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.0.4.122","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.0.4.122","eol":null,"hubHref":"/vendor/netgear/r6400v2"},{"vendor":"netgear","product":"r6700v3_firmware","name":"r6700v3 firmware","label":"r6700v3_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 1.0.4.122","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.0.4.122","eol":null,"hubHref":"/vendor/netgear/r6700v3"}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://kb.netgear.com/000064437/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Multiple-Products-PSV-2021-0278","label":"kb.netgear.com/000064437/…","hostname":"kb.netgear.com","tags":["X Refsource MISC","Patch","Vendor Advisory"]},{"url":"https://www.sentinelone.com/labs/cve-2021-45608-netusb-rce-flaw-in-millions-of-end-user-routers/","label":"www.sentinelone.com/labs/cve-2021-45608-netusb-rce-flaw-in-millions-of-end-user-routers/","hostname":"www.sentinelone.com","tags":["X Refsource MISC","Exploit","Patch","Third Party Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":["CVE-2021-45388"],"related":[]},"timeline":[{"kind":"published","date":"2021-12-26T00:37:23.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T04:47:01.576Z","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":"2026-10-21T21:44:12.157Z","stale":false,"partial":false}}