{"id":"CVE-2022-29402","aliases":["EUVD-2022-33741","GHSA-qmfg-pfxw-q9rj"],"status":"published","title":"TP-Link TL-WR840N EU v6.20 was discovered to contain insecure protections for its UART console....","description":"TP-Link TL-WR840N EU v6.20 was discovered to contain insecure protections for its UART console. This vulnerability allows attackers 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/AC:L/AV:P/A:H/C:H/I:H/PR:N/S:U/UI:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00429,"percentile":0.37394,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2022-05-25T17:24:29Z","modified":"2026-06-17T04:40:06Z","products":[{"vendor":"tp-link","product":"tl-wr840n_firmware"}],"references":[{"url":"https://k4m1ll0.com/cve-tplink-tlwr840N-uart-shell.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-29402"},{"url":"https://github.com/advisories/GHSA-qmfg-pfxw-q9rj"}],"sources":{"cve":[{"id":"CVE-2022-29402","description":"TP-Link TL-WR840N EU v6.20 was discovered to contain insecure protections for its UART console. This vulnerability allows attackers to connect to the UART port via a serial connection and execute commands as the root user without authentication.","status":"published","published":"2022-05-25T17:24:29Z","modified":"2024-08-03T06:17:55.229Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AC:L/AV:P/A:H/C:H/I:H/PR:N/S:U/UI:N","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:34:36.578327Z"}],"euvd":[{"id":"EUVD-2022-33741","description":"TP-Link TL-WR840N EU v6.20 was discovered to contain insecure protections for its UART console. This vulnerability allows attackers to connect to the UART port via a serial connection and execute commands as the root user without authentication.","status":"published","published":"2022-05-25T17:24:29Z","modified":"2024-08-03T06:17:55Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AC:L/AV:P/A:H/C:H/I:H/PR:N/S:U/UI:N","level":"medium"}],"updated_at":"2026-11-03T03:25:38.703076Z"}],"ghsa":[{"id":"GHSA-qmfg-pfxw-q9rj","title":"TP-Link TL-WR840N EU v6.20 was discovered to contain insecure protections for its UART console....","description":"TP-Link TL-WR840N EU v6.20 was discovered to contain insecure protections for its UART console. This vulnerability allows attackers to connect to the UART port via a serial connection and execute commands as the root user without authentication.","status":"published","published":"2022-05-26T00:01:14Z","modified":"2023-01-27T05:03:03Z","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"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:42:09.625504Z"}],"nvd":[{"id":"CVE-2022-29402","description":"TP-Link TL-WR840N EU v6.20 was discovered to contain insecure protections for its UART console. This vulnerability allows attackers to connect to the UART port via a serial connection and execute commands as the root user without authentication.","status":"published","published":"2022-05-25T18:15:08.57Z","modified":"2026-06-17T04:40:06.86Z","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":"secondary"},{"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-306"],"updated_at":"2026-11-02T14:07:21.261605Z"}]}}