Just one instruction on AMD's 2015-era CPUs gets you access to Platform Security Processor, microcode, and System Management Interface

A critical security vulnerability has been discovered in AMD CPUs from 2015 and earlier, allowing attackers to gain full hardware-level access with just a single instruction. The flaw, named 'Skitter,... Read original →

This AMD vulnerability underscores deep-seated security flaws in legacy chip architectures. Technologically, the flaw allows attackers to exploit SMM and PSP access via a single bit toggle, compromising memory protection and enabling full system control—highlighting critical design weaknesses in pre-2015 CPUs. Supply chain implications are severe, especially for gaming, server, and embedded systems, where legacy chip inventories may face costly upgrades or recalls. Competitors like Intel or ARM are likely to emphasize their enhanced security features to gain market share. Looking ahead, hardware security will become a core design requirement in edge computing and IoT, not a post-facto patch. This incident signals that security must be embedded from the ground up, not treated as an afterthought.