{"id":"CVE-2023-3336","aliases":["EUVD-2023-44004","GHSA-78g4-c5r9-6gh7"],"status":"published","title":"TN-5900 Series User Enumeration Vulnerability","description":"TN-5900 Series version 3.3 and prior versions is vulnearble to user enumeration vulnerability. The vulnerability may allow a remote attacker to determine whether a user is valid during password recovery through the web login page and enable a brute force attack with valid users.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00608,"percentile":0.49412,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-203","CWE-204"],"published":"2023-07-05T09:11:54Z","modified":"2026-06-17T06:13:50Z","products":[{"vendor":"moxa","product":"tn-5900"},{"vendor":"moxa","product":"tn-5900 series"},{"vendor":"moxa","product":"tn-5900_firmware"}],"references":[{"url":"https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230401-tn-5900-series-user-enumeration-vulnerability","tags":["vendor-advisory","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3336"},{"url":"https://github.com/advisories/GHSA-78g4-c5r9-6gh7"}],"sources":{"cve":[{"id":"CVE-2023-3336","title":"TN-5900 Series User Enumeration Vulnerability","description":"TN-5900 Series version 3.3 and prior versions is vulnearble to user enumeration vulnerability. The vulnerability may allow a remote attacker to determine whether a user is valid during password recovery through the web login page and enable a brute force attack with valid users.\n\n","status":"published","published":"2023-07-05T09:11:54.255Z","modified":"2024-11-20T21:22:45.372Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-204"],"updated_at":"2026-11-02T14:35:24.707957Z"}],"euvd":[{"id":"EUVD-2023-44004","description":"TN-5900 Series version 3.3 and prior versions is vulnearble to user enumeration vulnerability. The vulnerability may allow a remote attacker to determine whether a user is valid during password recovery through the web login page and enable a brute force attack with valid users.\n\n","status":"published","published":"2023-07-05T09:11:54Z","modified":"2024-11-20T21:22:45Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T00:04:53.318425Z"}],"ghsa":[{"id":"GHSA-78g4-c5r9-6gh7","title":"TN-5900 Series version 3.3 and prior versions is vulnearble to user enumeration vulnerability....","description":"TN-5900 Series version 3.3 and prior versions is vulnearble to user enumeration vulnerability. The vulnerability may allow a remote attacker to determine whether a user is valid during password recovery through the web login page and enable a brute force attack with valid users.\n\n","status":"published","published":"2023-07-05T12:30:15Z","modified":"2024-04-04T05:23:23Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-203","CWE-204"],"updated_at":"2026-11-02T14:56:32.215105Z"}],"nvd":[{"id":"CVE-2023-3336","description":"TN-5900 Series version 3.3 and prior versions is vulnearble to user enumeration vulnerability. The vulnerability may allow a remote attacker to determine whether a user is valid during password recovery through the web login page and enable a brute force attack with valid users.\n\n","status":"published","published":"2023-07-05T10:15:10.193Z","modified":"2026-06-17T06:13:50.617Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-204","CWE-203"],"updated_at":"2026-11-02T14:08:14.715708Z"}]}}