Cisco 6400 Access Concentrator Node Route Processor 2 (NRP2) 12.1DC card does not properly disable access when a password has not been set for vtys, which allows remote attackers to obtain access via telnet.
| Software | From | Fixed in |
|---|---|---|
| cisco / 6400_nrp_2 | 12.1dc | 12.1dc.x |