New NightHawk X4S D7800 vulnerability

The above entries indicate the some device s using UPnP (Universal Plug N Play) to open/close ports on the firewall, this is perfectly legit as long as you are using a strong WPA2 AES password and have no malware on your computer, as thats what UPnP is for easy opening of ports but things connected to the internet. It can be a security risk but its probably not at all if your machine scans clean, I would not worry. As to the DoS attacks netgear routers are renound for seeing internet traffic as DoS attacks in the logs, generally more so with modems built in, but over time port probles will happen, so if someone is out there snifing, as long as you see those it means either its a false alarm or your router is doing its job.