{"id":"CVE-2000-1027","aliases":["EUVD-2000-1014","GHSA-vmw8-4qxc-x5wf"],"status":"published","title":"Cisco Secure PIX Firewall 5.2(2) allows remote attackers to determine the real IP address of a...","description":"Cisco Secure PIX Firewall 5.2(2) allows remote attackers to determine the real IP address of a target FTP server by flooding the server with PASV requests, which includes the real IP address in the response when passive mode is established.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03535,"percentile":0.89345,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2000-12-11T05:00:00Z","modified":"2026-09-23T13:10:00Z","exploits":[{"source":"exploitdb","id":"EDB-20369","title":"Cisco PIX Firewall 5.2 - PASV Mode FTP Internal Address Disclosure","type":"remote","platform":"hardware","date":"2000-10-03","verified":true,"url":"https://www.exploit-db.com/exploits/20369"}],"products":[{"vendor":"cisco","product":"pix_firewall_software"}],"references":[{"url":"http://www.securityfocus.com/bid/1877","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit","Vendor Advisory"]},{"url":"http://marc.info/?l=bugtraq\u0026m=97059440000367\u0026w=2","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.osvdb.org/1623","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/5646","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2000-1027"},{"url":"https://github.com/advisories/GHSA-vmw8-4qxc-x5wf"}],"sources":{"cve":[{"id":"CVE-2000-1027","description":"Cisco Secure PIX Firewall 5.2(2) allows remote attackers to determine the real IP address of a target FTP server by flooding the server with PASV requests, which includes the real IP address in the response when passive mode is established.","status":"published","published":"2001-01-22T05:00:00Z","modified":"2024-08-08T05:37:32.349Z","updated_at":"2026-11-02T14:33:40.909668Z"}],"euvd":[{"id":"EUVD-2000-1014","description":"Cisco Secure PIX Firewall 5.2(2) allows remote attackers to determine the real IP address of a target FTP server by flooding the server with PASV requests, which includes the real IP address in the response when passive mode is established.","status":"published","published":"2001-01-22T05:00:00Z","modified":"2024-08-08T05:37:32Z","updated_at":"2026-11-03T00:56:22.927724Z"}],"ghsa":[{"id":"GHSA-vmw8-4qxc-x5wf","title":"Cisco Secure PIX Firewall 5.2(2) allows remote attackers to determine the real IP address of a...","description":"Cisco Secure PIX Firewall 5.2(2) allows remote attackers to determine the real IP address of a target FTP server by flooding the server with PASV requests, which includes the real IP address in the response when passive mode is established.","status":"published","published":"2022-04-30T18:14:46Z","modified":"2023-01-30T05:05:18Z","updated_at":"2026-11-02T14:47:14.398767Z"}],"nvd":[{"id":"CVE-2000-1027","description":"Cisco Secure PIX Firewall 5.2(2) allows remote attackers to determine the real IP address of a target FTP server by flooding the server with PASV requests, which includes the real IP address in the response when passive mode is established.","status":"published","published":"2000-12-11T05:00:00Z","modified":"2026-09-23T13:10:00.153Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T13:59:02.365657Z"}]}}