{"id":"CVE-1999-1157","aliases":["EUVD-1999-1138","GHSA-2pvc-9pxf-rw8p"],"status":"published","title":"Tcpip.sys in Windows NT 4.0 before SP4 allows remote attackers to cause a denial of service via...","description":"Tcpip.sys in Windows NT 4.0 before SP4 allows remote attackers to cause a denial of service via an ICMP Subnet Mask Address Request packet, when certain multiple IP addresses are bound to the same network interface.","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":"2026-11-10","score":0.13344,"percentile":0.9644,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"1999-12-31T05:00:00Z","modified":"2026-06-16T21:49:50Z","products":[{"vendor":"microsoft","product":"windows_nt"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/3894","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://support.microsoft.com/support/kb/articles/Q192/7/74.ASP","tags":["vendor-advisory","x_refsource_MSKB","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-1999-1157"},{"url":"https://github.com/advisories/GHSA-2pvc-9pxf-rw8p"}],"sources":{"cve":[{"id":"CVE-1999-1157","description":"Tcpip.sys in Windows NT 4.0 before SP4 allows remote attackers to cause a denial of service via an ICMP Subnet Mask Address Request packet, when certain multiple IP addresses are bound to the same network interface.","status":"published","published":"2002-03-09T05:00:00Z","modified":"2024-08-01T17:02:53.744Z","updated_at":"2026-11-02T14:33:53.295018Z"}],"euvd":[{"id":"EUVD-1999-1138","description":"Tcpip.sys in Windows NT 4.0 before SP4 allows remote attackers to cause a denial of service via an ICMP Subnet Mask Address Request packet, when certain multiple IP addresses are bound to the same network interface.","status":"published","published":"2002-03-09T05:00:00Z","modified":"2024-08-01T17:02:53Z","updated_at":"2026-11-03T03:50:43.777799Z"}],"ghsa":[{"id":"GHSA-2pvc-9pxf-rw8p","title":"Tcpip.sys in Windows NT 4.0 before SP4 allows remote attackers to cause a denial of service via...","description":"Tcpip.sys in Windows NT 4.0 before SP4 allows remote attackers to cause a denial of service via an ICMP Subnet Mask Address Request packet, when certain multiple IP addresses are bound to the same network interface.","status":"published","published":"2022-04-30T18:11:55Z","modified":"2023-01-30T05:04:32Z","updated_at":"2026-11-02T14:47:04.089519Z"}],"nvd":[{"id":"CVE-1999-1157","description":"Tcpip.sys in Windows NT 4.0 before SP4 allows remote attackers to cause a denial of service via an ICMP Subnet Mask Address Request packet, when certain multiple IP addresses are bound to the same network interface.","status":"published","published":"1999-12-31T05:00:00Z","modified":"2026-06-16T21:49:50.523Z","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":"2026-11-02T13:58:51.654586Z"}]}}