Total vulnerabilities in the database
Cisco Catalyst 4000 series switches running CatOS 5.5.5, 6.3.5, and 7.1.2 do not always learn MAC addresses from a single initial packet, which causes unicast traffic to be broadcast across the switch and allows remote attackers to obtain sensitive network information by sniffing.
| Software | From | Fixed in |
|---|---|---|
| cisco / catos | 7.1(2) | 7.1(2).x |
| cisco / catos | 6.3(5) | 6.3(5).x |
| cisco / catos | 5.5(5) | 5.5(5).x |