Bug not found even with tool. Suggest you open a case with the TAC. That normally requires a support contract, but if you call and say that the router is new and you are very upset, they may provide support anyway.
In the defect below the same condition is seen after some DNS queries are made. I don't have your exact image, so I can't decode your tracebacks to see if they match, but I bet they will as this was seen in 12.4(11)T images.
Externally found severe defect: Resolved (R)
CPU usage reaches 99% after nmap scan on port 53
This defect was fixed in 12.4(13.8)T, which basically means the next release of 12.4T code somewhere around the end of June or beginning of July time frame.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...