Total vulnerabilities in the database
Cisco IOS 12.1, 12.2, 12.3, and 12.4, with IPv4 UDP services and the IPv6 protocol enabled, allows remote attackers to cause a denial of service (device crash and possible blocked interface) via a crafted IPv6 packet to the device.
| Software | From | Fixed in |
|---|---|---|
| cisco / cisco_ios | 12.3 | 12.3.x |
| cisco / ios | 12.1 | 12.1.x |
| cisco / cisco_ios | 12.4 | 12.4.x |
| cisco / ios | 12.2 | 12.2.x |