{"id":"CVE-2021-23147","aliases":["EUVD-2021-10261","GHSA-92gj-cjfc-w72m"],"status":"published","title":"Netgear Nighthawk R6700 version 1.0.4.120 does not have sufficient protections for the UART...","description":"Netgear Nighthawk R6700 version 1.0.4.120 does not have sufficient protections for the UART console. A malicious actor with physical access to the device is able to connect to the UART port via a serial connection and execute commands as the root user without authentication.","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00376,"percentile":0.32048,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2021-12-30T21:31:20Z","modified":"2026-06-17T03:38:20Z","products":[{"vendor":"netgear","product":"r6700_firmware"}],"references":[{"url":"https://www.tenable.com/security/research/tra-2021-57","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23147"},{"url":"https://github.com/advisories/GHSA-92gj-cjfc-w72m"}],"sources":{"cve":[{"id":"CVE-2021-23147","description":"Netgear Nighthawk R6700 version 1.0.4.120 does not have sufficient protections for the UART console. A malicious actor with physical access to the device is able to connect to the UART port via a serial connection and execute commands as the root user without authentication.","status":"published","published":"2021-12-30T21:31:20Z","modified":"2024-08-03T18:58:26.298Z","updated_at":"2026-11-02T14:33:00.819444Z"}],"euvd":[{"id":"EUVD-2021-10261","description":"Netgear Nighthawk R6700 version 1.0.4.120 does not have sufficient protections for the UART console. A malicious actor with physical access to the device is able to connect to the UART port via a serial connection and execute commands as the root user without authentication.","status":"published","published":"2021-12-30T21:31:20Z","modified":"2024-08-03T18:58:26Z","updated_at":"2026-11-03T03:25:00.591933Z"}],"ghsa":[{"id":"GHSA-92gj-cjfc-w72m","title":"Netgear Nighthawk R6700 version 1.0.4.120 does not have sufficient protections for the UART...","description":"Netgear Nighthawk R6700 version 1.0.4.120 does not have sufficient protections for the UART console. A malicious actor with physical access to the device is able to connect to the UART port via a serial connection and execute commands as the root user without authentication.","status":"published","published":"2021-12-31T00:00:20Z","modified":"2023-02-03T05:03:38Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:53:23.659712Z"}],"nvd":[{"id":"CVE-2021-23147","description":"Netgear Nighthawk R6700 version 1.0.4.120 does not have sufficient protections for the UART console. A malicious actor with physical access to the device is able to connect to the UART port via a serial connection and execute commands as the root user without authentication.","status":"published","published":"2021-12-30T22:15:09.903Z","modified":"2026-06-17T03:38:20.567Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:07:02.977492Z"}]}}