router is vulnerable to attack

I have Avast Free protection. I ran a smart scan and all is well except for my wireless. I have a Netgear N2000 router. It keeps saying it is vulnerable, and to upgrade firmware. I have the latest firmware and my security is set at WPA2-PSK AES, and of course, it’s password protected. I have had this router for some time, and this never happened on scans until about a month or so ago. Anybody having this problem. This shows up on my Windows 7 computer and my Windows 8.1 computer. Help would be appreciated. Thanks

Ask Netgear to solve it or get router that is not vulnerable.

https://tools.cisco.com/security/center/viewAlert.x?alertId=23377
http://securityaffairs.co/wordpress/54647/hacking/netgear-wnr2000-routers-flaw.html
https://tinyurl.com/l5qc43o