{"id":"CVE-2002-1071","aliases":["EUVD-2002-1060","GHSA-932g-jw4h-6cmm"],"status":"published","title":"ZyXEL Prestige 642R allows remote attackers to cause a denial of service in the Telnet, FTP, and...","description":"ZyXEL Prestige 642R allows remote attackers to cause a denial of service in the Telnet, FTP, and DHCP services (crash) via a TCP packet with both the SYN and ACK flags set.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03318,"percentile":0.88662,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2002-08-31T04:00:00Z","modified":"2026-06-16T21:58:40Z","exploits":[{"source":"exploitdb","id":"EDB-21561","title":"ZYXEL Prestige 642R Router - Malformed Packet Denial of Service","type":"dos","platform":"hardware","date":"2002-07-17","verified":true,"url":"https://www.exploit-db.com/exploits/21561"}],"products":[{"vendor":"zyxel","product":"prestige"}],"references":[{"url":"http://online.securityfocus.com/archive/1/277307","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.iss.net/security_center/static/9372.php","tags":["vdb-entry","x_refsource_XF","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/5034","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit","Patch","Vendor Advisory"]},{"url":"http://online.securityfocus.com/archive/1/277242","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://online.securityfocus.com/archive/1/277303","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2002-1071"},{"url":"https://github.com/advisories/GHSA-932g-jw4h-6cmm"}],"sources":{"cve":[{"id":"CVE-2002-1071","description":"ZyXEL Prestige 642R allows remote attackers to cause a denial of service in the Telnet, FTP, and DHCP services (crash) via a TCP packet with both the SYN and ACK flags set.","status":"published","published":"2002-08-31T04:00:00Z","modified":"2024-08-08T03:12:16.9Z","updated_at":"2026-11-02T14:33:54.972584Z"}],"euvd":[{"id":"EUVD-2002-1060","description":"ZyXEL Prestige 642R allows remote attackers to cause a denial of service in the Telnet, FTP, and DHCP services (crash) via a TCP packet with both the SYN and ACK flags set.","status":"published","published":"2002-08-31T04:00:00Z","modified":"2024-08-08T03:12:16Z","updated_at":"2026-11-03T01:14:57.683744Z"}],"ghsa":[{"id":"GHSA-932g-jw4h-6cmm","title":"ZyXEL Prestige 642R allows remote attackers to cause a denial of service in the Telnet, FTP, and...","description":"ZyXEL Prestige 642R allows remote attackers to cause a denial of service in the Telnet, FTP, and DHCP services (crash) via a TCP packet with both the SYN and ACK flags set.","status":"published","published":"2022-04-30T18:20:28Z","modified":"2023-01-30T05:05:41Z","updated_at":"2026-11-02T14:47:20.238022Z"}],"nvd":[{"id":"CVE-2002-1071","description":"ZyXEL Prestige 642R allows remote attackers to cause a denial of service in the Telnet, FTP, and DHCP services (crash) via a TCP packet with both the SYN and ACK flags set.","status":"published","published":"2002-10-04T04:00:00Z","modified":"2026-06-16T21:58:40.45Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:42.827505Z"}]}}