Security News New AMD SinkClose flaw helps install nearly undetectable malware BleepingComputer Daniel Bender Aug 9, 2024 AMD is warning about a high-severity CPU vulnerability named SinkClose that impacts multiple generations of its EPYC, Ryzen, and Threadripper processors. The vulnerability allows attackers with Kernel-level (Ring 0) privileges to gain Ring -2 privileges and install malware that becomes nearly undetectable.