Avast HNS-SELF-WAN-ACCESS-IPV6

The vulnerability HNS-SELF-WAN-ACCESS-IPV6 indicates that your device is reachable from the internet via IPv6. Especially ports 135 and 445 are accessible from the internet via IPv6, leaving your device vulnerable to attacks. The open ports indicate that your device is susceptible to online threats, or attackers could potentially exploit them. 

I hope the following steps may resolve your issue: 

1. Disable file and printer sharing: Ports 135 and 445 are used for file and printer sharing on Windows. It is better to disable file and printer sharing settings if you don't have to share files or printers with other devices. 
2. Use firewalls: Using a firewall, you can block incoming connections to your device on specific ports. Either use a Built-in Windows firewall or any other third-party software to block incoming connections on ports 135 and 445. 
3. Disable IPv6: As IPv6 makes your device accessible on the internet, you can disable it if you don't need it. 

Ok - Merci  SameekshaM  pour ta réponse rapide - Je vais voir ce que je peux faire, notamment "disable IPV6" 

Cordialement.

Bonjour avion-f16.

C'est exact - c'est ce que j'ai fait - Merci pour ta participation.

Cordialement