Multiple security researchers have released details about a new class of speculative attacks against all modern Intel processors. The attacks are different from and more dangerous than Meltdown and Spectre and their variations because they can leak data from CPU buffers, which is not necessarily present in caches. […]

from https://www.bleepingcomputer.com/news/security/new-ridl-and-fallout-attacks-impact-all-modern-intel-cpus/