CVE-1999-0667: Arp Protocol

High severity, CVSS 10.0. EPSS: 13.6% chance of exploitation in the next 30 days.

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.

Affected products

• Arp Protocol Arp Protocol: any version

Published 1997-09-19. Last modified 2026-06-16.