{"id":"CVE-2000-0673","aliases":["EUVD-2000-0669","GHSA-459f-26mc-vgm2"],"status":"published","title":"The NetBIOS Name Server (NBNS) protocol does not perform authentication, which allows remote...","description":"The NetBIOS Name Server (NBNS) protocol does not perform authentication, which allows remote attackers to cause a denial of service by sending a spoofed Name Conflict or Name Release datagram, aka the \"NetBIOS Name Server Protocol Spoofing\" vulnerability.","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":0.33446,"percentile":0.98389,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2000-07-27T04:00:00Z","modified":"2026-06-16T21:52:14Z","exploits":[{"source":"exploitdb","id":"EDB-20106","title":"Microsoft Windows NT 4.0/2000 - NetBIOS Name Conflict","type":"remote","platform":"windows","date":"2000-08-01","verified":true,"url":"https://www.exploit-db.com/exploits/20106"}],"products":[{"vendor":"microsoft","product":"windows_2000"},{"vendor":"microsoft","product":"windows_nt"}],"references":[{"url":"http://www.nai.com/research/covert/advisories/044.asp","tags":["vendor-advisory","x_refsource_NAI","x_transferred"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-047","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/5035","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.securityfocus.com/bid/1515","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.securityfocus.com/bid/1514","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2000-0673"},{"url":"https://github.com/advisories/GHSA-459f-26mc-vgm2"}],"sources":{"cve":[{"id":"CVE-2000-0673","description":"The NetBIOS Name Server (NBNS) protocol does not perform authentication, which allows remote attackers to cause a denial of service by sending a spoofed Name Conflict or Name Release datagram, aka the \"NetBIOS Name Server Protocol Spoofing\" vulnerability.","status":"published","published":"2000-10-13T04:00:00Z","modified":"2024-08-08T05:28:40.718Z","updated_at":"2026-11-02T14:33:40.909668Z"}],"euvd":[{"id":"EUVD-2000-0669","description":"The NetBIOS Name Server (NBNS) protocol does not perform authentication, which allows remote attackers to cause a denial of service by sending a spoofed Name Conflict or Name Release datagram, aka the \"NetBIOS Name Server Protocol Spoofing\" vulnerability.","status":"published","published":"2000-10-13T04:00:00Z","modified":"2024-08-08T05:28:40Z","updated_at":"2026-11-03T00:56:24.256161Z"}],"ghsa":[{"id":"GHSA-459f-26mc-vgm2","title":"The NetBIOS Name Server (NBNS) protocol does not perform authentication, which allows remote...","description":"The NetBIOS Name Server (NBNS) protocol does not perform authentication, which allows remote attackers to cause a denial of service by sending a spoofed Name Conflict or Name Release datagram, aka the \"NetBIOS Name Server Protocol Spoofing\" vulnerability.","status":"published","published":"2022-04-30T18:14:06Z","modified":"2023-01-30T05:05:06Z","updated_at":"2026-11-02T14:47:11.556895Z"}],"nvd":[{"id":"CVE-2000-0673","description":"The NetBIOS Name Server (NBNS) protocol does not perform authentication, which allows remote attackers to cause a denial of service by sending a spoofed Name Conflict or Name Release datagram, aka the \"NetBIOS Name Server Protocol Spoofing\" vulnerability.","status":"published","published":"2000-07-27T04:00:00Z","modified":"2026-06-16T21:52:14.333Z","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":"2026-11-02T13:59:02.365657Z"}]}}