Microsoft has released an urgent security update to address a critical remote code execution vulnerability in the Windows TCP/IP stack. The flaw tracked as CVE-2024-38063, affects all supported Windows and Windows Server versions, including Server Core installations.
You are wise to be careful. Many home routers do not implement filtering this traffic correctly. I use it, but I had to perform a series of tests to ensure that restrictions are placed on accessibility of devices behind the firewall.