{"id":"CVE-2021-45608","aliases":["EUVD-2021-32374","GHSA-6x83-8r8h-3w2x"],"status":"published","title":"Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This...","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.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AC:H/AV:N/A:N/C:H/I:L/PR:N/S:U/UI:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-13","score":0.02702,"percentile":0.86168,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120","CWE-190"],"published":"2021-12-26T00:37:23Z","modified":"2026-06-17T04:13:45Z","products":[{"vendor":"netgear","product":"d7800_firmware"},{"vendor":"netgear","product":"r6400v2_firmware"},{"vendor":"netgear","product":"r6700v3_firmware"}],"references":[{"url":"https://kb.netgear.com/000064437/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Multiple-Products-PSV-2021-0278","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://www.sentinelone.com/labs/cve-2021-45608-netusb-rce-flaw-in-millions-of-end-user-routers/","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45608"},{"url":"https://github.com/advisories/GHSA-6x83-8r8h-3w2x"}],"sources":{"cve":[{"id":"CVE-2021-45608","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.","status":"published","published":"2021-12-26T00:37:23Z","modified":"2024-08-04T04:47:01.576Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AC:H/AV:N/A:N/C:H/I:L/PR:N/S:U/UI:N","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:33:02.580561Z"}],"euvd":[{"id":"EUVD-2021-32374","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.","status":"published","published":"2021-12-26T00:37:23Z","modified":"2024-08-04T04:47:01Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AC:H/AV:N/A:N/C:H/I:L/PR:N/S:U/UI:N","level":"medium"}],"updated_at":"2026-11-03T03:08:26.364792Z"}],"ghsa":[{"id":"GHSA-6x83-8r8h-3w2x","title":"Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This...","description":"Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D7800 before 1.0.1.68, R6400v2 before 1.0.4.122, and R6700v3 before 1.0.4.122.","status":"published","published":"2021-12-27T00:00:52Z","modified":"2023-02-03T05:03:27Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-120","CWE-190"],"updated_at":"2026-11-02T14:53:21.760979Z"}],"nvd":[{"id":"CVE-2021-45608","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.","status":"published","published":"2021-12-26T01:15:18.083Z","modified":"2026-06-17T04:13:45.707Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:07:02.977492Z"}]}}