{"vulnerability": "CVE-1999-0531", "sightings": [{"uuid": "c2c8f344-8c14-4d24-8483-8219b69181f2", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-1999-0531", "type": "seen", "source": "MISP/a1e796df-2ad8-4c8d-8b69-737a004e72dd", "content": "", "creation_timestamp": "2025-02-06T03:13:37.000000Z"}, {"uuid": "92512036-3702-4cee-be8f-b22af281fa29", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-1999-0531", "type": "seen", "source": "MISP/a1e796df-2ad8-4c8d-8b69-737a004e72dd", "content": "", "creation_timestamp": "2025-02-23T04:08:01.000000Z"}, {"uuid": "e93bf4ea-b591-4fb1-b6f8-6286a2f733f9", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-1999-0531", "type": "seen", "source": "https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/smtp/smtp_enum.rb", "content": "", "creation_timestamp": "2018-05-29T15:50:33.000000Z"}, {"uuid": "6b81b6a6-2a16-484e-9ae8-038b1013cf0a", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-1999-0531", "type": "seen", "source": "https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/smtp/smtp_enum.rb", "content": "{\"actions\": [], \"aliases\": [\"auxiliary/scanner/smtp/enum\"], \"arch\": \"\", \"author\": [\"Heyder Andrade \", \"nebulus\"], \"autofilter_ports\": [25, 465, 587, 2525, 25025, 25000], \"autofilter_services\": [\"smtp\", \"smtps\"], \"check\": false, \"default_credential\": false, \"description\": \"The SMTP service has two internal commands that allow the enumeration\\n        of users: VRFY (confirming the names of valid users) and EXPN (which\\n        reveals the actual address of users aliases and lists of e-mail\\n        (mailing lists)). Through the implementation of these SMTP commands can\\n        reveal a list of valid users.\", \"disclosure_date\": null, \"fullname\": \"auxiliary/scanner/smtp/smtp_enum\", \"is_install_path\": true, \"mod_time\": \"2026-04-02 17:30:43 +0000\", \"name\": \"SMTP User Enumeration Utility\", \"needs_cleanup\": false, \"notes\": {}, \"path\": \"/modules/auxiliary/scanner/smtp/smtp_enum.rb\", \"platform\": \"\", \"post_auth\": false, \"rank\": 300, \"ref_name\": \"scanner/smtp/smtp_enum\", \"references\": [\"URL-http://www.ietf.org/rfc/rfc2821.txt\", \"OSVDB-12551\", \"CVE-1999-0531\"], \"rport\": 25, \"session_types\": false, \"targets\": null, \"type\": \"auxiliary\"}", "creation_timestamp": "2026-09-08T06:48:06.233988Z"}]}