All AMD Zen-based Ryzen and EPYC CPUs could be compromised to expose privileged secrets and data with the novel Inception side-channel attack, which was developed by ETH Zurich researchers through the combination of a Phantom speculation technique, tracked as CVE-2022-23825, and the "Training in Transient Execution" attack, according to BleepingComputer.
Article Link: AMD Zen CPUs at risk of data exposure with novel attack | SC Media