{"id":"CVE-2021-20158","aliases":["EUVD-2021-7615","GHSA-3r6m-8r6h-j558"],"status":"published","title":"Trendnet AC2600 TEW-827DRU version 2.08B01 contains an authentication bypass vulnerability. It is...","description":"Trendnet AC2600 TEW-827DRU version 2.08B01 contains an authentication bypass vulnerability. It is possible for an unauthenticated, malicous actor to force the change of the admin password due to a hidden administrative command.","severity":{"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","from":"nvd"},"epss":{"day":"2026-11-10","score":0.09618,"percentile":0.95523,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287","CWE-306"],"published":"2021-12-30T21:31:03Z","modified":"2026-06-17T03:33:22Z","exploits":[{"source":"nuclei","id":"CVE-2021-20158","title":"Trendnet AC2600 TEW-827DRU 2.08B01 - Admin Password Change","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-20158.yaml"}],"products":[{"vendor":"trendnet","product":"tew-827dru_firmware"}],"references":[{"url":"https://www.tenable.com/security/research/tra-2021-54","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20158"},{"url":"https://github.com/advisories/GHSA-3r6m-8r6h-j558"}],"sources":{"cve":[{"id":"CVE-2021-20158","description":"Trendnet AC2600 TEW-827DRU version 2.08B01 contains an authentication bypass vulnerability. It is possible for an unauthenticated, malicous actor to force the change of the admin password due to a hidden administrative command.","status":"published","published":"2021-12-30T21:31:03Z","modified":"2024-08-03T17:30:07.626Z","updated_at":"2026-11-02T14:32:55.564736Z"}],"euvd":[{"id":"EUVD-2021-7615","description":"Trendnet AC2600 TEW-827DRU version 2.08B01 contains an authentication bypass vulnerability. It is possible for an unauthenticated, malicous actor to force the change of the admin password due to a hidden administrative command.","status":"published","published":"2021-12-30T21:31:03Z","modified":"2024-08-03T17:30:07Z","updated_at":"2026-11-03T03:25:09.841069Z"}],"ghsa":[{"id":"GHSA-3r6m-8r6h-j558","title":"Trendnet AC2600 TEW-827DRU version 2.08B01 contains an authentication bypass vulnerability. It is...","description":"Trendnet AC2600 TEW-827DRU version 2.08B01 contains an authentication bypass vulnerability. It is possible for an unauthenticated, malicous actor to force the change of the admin password due to a hidden administrative command.","status":"published","published":"2021-12-31T00:00:32Z","modified":"2023-01-27T05:01:30Z","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-287"],"updated_at":"2026-11-02T14:41:54.261914Z"}],"nvd":[{"id":"CVE-2021-20158","description":"Trendnet AC2600 TEW-827DRU version 2.08B01 contains an authentication bypass vulnerability. It is possible for an unauthenticated, malicous actor to force the change of the admin password due to a hidden administrative command.","status":"published","published":"2021-12-30T22:15:08.99Z","modified":"2026-06-17T03:33:22.267Z","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","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-306"],"updated_at":"2026-11-02T14:07:02.977492Z"}]}}