Attackers need to access the system kernel to exploit the Sinkclose vulnerability, so the system would have to already be compromised. The hack itself is a sophisticated vector that is usually only used by state-sponsored hackers, so most casual users should take that into account.

So it’s a vulnerability that requires you to.already have been compromised. Hardly seems like news.

I can understand AMD only patching server chips that by definition will be under greater threat. On the other hand it’s probably not worth the bad publicity not to fix more.