{"id":"CVE-2021-28909","aliases":["EUVD-2021-15562","GHSA-4pvv-c564-5hw3"],"status":"published","title":"BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1 allow unauthenticated attackers to access...","description":"BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1 allow unauthenticated attackers to access uncontrolled the login service at /webif/SecurityModule in a brute force attack. The password could be weak and default username is known as 'admin'. This is usable and part of an attack chain to gain SSH root access.","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":"2026-11-09","score":0.01391,"percentile":0.72523,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-307"],"published":"2021-09-09T17:35:00Z","modified":"2026-06-17T03:47:01Z","products":[{"vendor":"bab-technologie","product":"eibport_firmware"}],"references":[{"url":"https://psytester.github.io/CVE-2021-28909","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28909"},{"url":"https://github.com/advisories/GHSA-4pvv-c564-5hw3"}],"sources":{"cve":[{"id":"CVE-2021-28909","description":"BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1 allow unauthenticated attackers to access uncontrolled the login service at /webif/SecurityModule in a brute force attack. The password could be weak and default username is known as 'admin'. This is usable and part of an attack chain to gain SSH root access.","status":"published","published":"2021-09-09T17:35:00Z","modified":"2024-08-03T21:55:12.234Z","updated_at":"2026-11-02T14:33:09.175141Z"}],"euvd":[{"id":"EUVD-2021-15562","description":"BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1 allow unauthenticated attackers to access uncontrolled the login service at /webif/SecurityModule in a brute force attack. The password could be weak and default username is known as 'admin'. This is usable and part of an attack chain to gain SSH root access.","status":"published","published":"2021-09-09T17:35:00Z","modified":"2024-08-03T21:55:12Z","updated_at":"2026-11-03T03:24:46.117926Z"}],"ghsa":[{"id":"GHSA-4pvv-c564-5hw3","title":"BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1 allow unauthenticated attackers to access...","description":"BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1 allow unauthenticated attackers to access uncontrolled the login service at /webif/SecurityModule in a brute force attack. The password could be weak and default username is known as 'admin'. This is usable and part of an attack chain to gain SSH root access.","status":"published","published":"2022-05-24T19:13:59Z","modified":"2023-01-30T05:02:08Z","cwes":["CWE-307"],"updated_at":"2026-11-02T14:46:34.16886Z"}],"nvd":[{"id":"CVE-2021-28909","description":"BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1 allow unauthenticated attackers to access uncontrolled the login service at /webif/SecurityModule in a brute force attack. The password could be weak and default username is known as 'admin'. This is usable and part of an attack chain to gain SSH root access.","status":"published","published":"2021-09-09T18:15:08.683Z","modified":"2026-06-17T03:47:01.85Z","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":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-307"],"updated_at":"2026-11-02T14:06:58.502206Z"}]}}