{"id":"CVE-1999-0667","aliases":["EUVD-1999-0649","GHSA-g6qq-r83r-4f3x"],"status":"published","title":"The ARP protocol allows any host to spoof ARP replies and poison the ARP cache to conduct IP...","description":"The ARP protocol allows any host to spoof ARP replies and poison the ARP cache to conduct IP address spoofing or a denial of service.","severity":{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.13641,"percentile":0.96512,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"1997-09-19T04:00:00Z","modified":"2026-06-16T21:48:48Z","exploits":[{"source":"metasploit","id":"auxiliary/spoof/arp/arp_poisoning","title":"ARP Spoof","type":"auxiliary","date":"1999-12-22","verified":true,"url":"https://www.rapid7.com/db/modules/auxiliary/spoof/arp/arp_poisoning"}],"products":[{"vendor":"arp_protocol","product":"arp_protocol"}],"references":[{"url":"https://marc.info/?l=bugtraq\u0026m=87602880019797\u0026w=2","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-1999-0667"},{"url":"https://github.com/advisories/GHSA-g6qq-r83r-4f3x"}],"sources":{"cve":[{"id":"CVE-1999-0667","description":"The ARP protocol allows any host to spoof ARP replies and poison the ARP cache to conduct IP address spoofing or a denial of service.","status":"published","published":"2000-02-04T05:00:00Z","modified":"2024-08-01T16:48:37.039Z","updated_at":"2026-11-02T14:33:53.911988Z"}],"euvd":[{"id":"EUVD-1999-0649","description":"The ARP protocol allows any host to spoof ARP replies and poison the ARP cache to conduct IP address spoofing or a denial of service.","status":"published","published":"2000-02-04T05:00:00Z","modified":"2024-08-01T16:48:37Z","updated_at":"2026-11-03T03:50:46.021315Z"}],"ghsa":[{"id":"GHSA-g6qq-r83r-4f3x","title":"The ARP protocol allows any host to spoof ARP replies and poison the ARP cache to conduct IP...","description":"The ARP protocol allows any host to spoof ARP replies and poison the ARP cache to conduct IP address spoofing or a denial of service.","status":"published","published":"2022-04-30T18:10:58Z","modified":"2023-01-29T05:01:41Z","updated_at":"2026-11-02T14:44:53.095202Z"}],"nvd":[{"id":"CVE-1999-0667","description":"The ARP protocol allows any host to spoof ARP replies and poison the ARP cache to conduct IP address spoofing or a denial of service.","status":"published","published":"1997-09-19T04:00:00Z","modified":"2026-06-16T21:48:48.363Z","cvss":[{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T13:58:19.254283Z"}]}}