{"id":"CVE-2021-42849","aliases":["EUVD-2021-29804","GHSA-m656-2gwx-2qc9"],"status":"published","title":"A weak default password for the serial port was reported in some Lenovo Personal Cloud Storage...","description":"A weak default password for the serial port was reported in some Lenovo Personal Cloud Storage devices that could allow unauthorized device access to an attacker with physical access.","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":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00233,"percentile":0.14244,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287","CWE-798"],"published":"2022-05-18T16:10:28Z","modified":"2026-06-17T04:10:12Z","products":[{"vendor":"lenovo","product":"a1_firmware"},{"vendor":"lenovo","product":"personal cloud storage a1"},{"vendor":"lenovo","product":"personal cloud storage t1"},{"vendor":"lenovo","product":"personal cloud storage t2"},{"vendor":"lenovo","product":"personal cloud storage t2pro"},{"vendor":"lenovo","product":"personal cloud storage x1"},{"vendor":"lenovo","product":"t1_firmware"},{"vendor":"lenovo","product":"t2_firmware"},{"vendor":"lenovo","product":"t2pro_firmware"},{"vendor":"lenovo","product":"x1_firmware"}],"references":[{"url":"https://iknow.lenovo.com.cn/detail/dc_200017.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42849"},{"url":"https://github.com/advisories/GHSA-m656-2gwx-2qc9"}],"sources":{"cve":[{"id":"CVE-2021-42849","description":"A weak default password for the serial port was reported in some Lenovo Personal Cloud Storage devices that could allow unauthorized device access to an attacker with physical access.","status":"published","published":"2022-05-18T16:10:28Z","modified":"2024-08-04T03:38:50.219Z","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":"cna"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:32:58.739039Z"}],"euvd":[{"id":"EUVD-2021-29804","description":"A weak default password for the serial port was reported in some Lenovo Personal Cloud Storage devices that could allow unauthorized device access to an attacker with physical access.","status":"published","published":"2022-05-18T16:10:28Z","modified":"2024-08-04T03:38:50Z","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"}],"updated_at":"2026-11-03T03:24:15.299027Z"}],"ghsa":[{"id":"GHSA-m656-2gwx-2qc9","title":"A weak default password for the serial port was reported in some Lenovo Personal Cloud Storage...","description":"A weak default password for the serial port was reported in some Lenovo Personal Cloud Storage devices that could allow unauthorized device access to an attacker with physical access.","status":"published","published":"2022-05-19T00:00:24Z","modified":"2023-07-04T05:01:34Z","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-287","CWE-798"],"updated_at":"2026-11-02T14:54:40.485503Z"}],"nvd":[{"id":"CVE-2021-42849","description":"A weak default password for the serial port was reported in some Lenovo Personal Cloud Storage devices that could allow unauthorized device access to an attacker with physical access.","status":"published","published":"2022-05-18T16:15:08.247Z","modified":"2026-06-17T04:10:12.057Z","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":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-798","CWE-287"],"updated_at":"2026-11-02T14:07:06.029737Z"}]}}