Расклад по мастям:
https://www.gamersnexus.net/industry/3260-assassination-atte...

TL;DR:
In speaking with multiple security experts off-record, we have it on good authority that the proposed vulnerabilities are potentially legitimate; however, our present understanding is that these alleged vulnerabilities: (1) Are not unique to AMD, (2) may require root access to the host system, and (3) are blown way out of proportion, if legitimate at all.

Если перевести на русский, выкинув сомнения в работоспособности эксплоитов, то эти уязвимости:
1. не уникальны для AMD
2. могут требовать рутовского доступа
3. делают из мухи слона.