近年流通しているCPUの多くはマイクロプログラム方式と呼ばれる実装方式を採用しており、セキュリティ上の欠陥が見つかった際などにマイクロコードを書き換えることでアップデートを適用できます。IntelやAMDなどのCPUメーカーは基本的にマイクロコード ...

OpenBSD is expanding its support by finally being able to apply AMD CPU microcode updates. It was reported that this comes with the latest code, which supports the update with new abilities. OpenBSD ...

Modern processors are incredibly complex, and even a tiny flaw during manufacturing can have serious and widespread repercussions. This seems to be the case with 13th and 14th Gen Intel Core desktop ...

Intel has released microcode updates for several generations of mobile, desktop, and server CPUs to fix a vulnerability that can be exploited to trigger at the very least a denial-of-service condition ...

The root cause was identified as a flawed microcode, which is essential for managing the low-level operations of the CPU. In response to this issue, Intel extended the warranty for all affected ...

AMD has released mitigation and firmware updates to address a high-severity vulnerability that can be exploited to load malicious CPU microcode on unpatched devices. The security flaw (CVE-2024-56161) ...

Last month, a team of Google security researchers released a tool that can modify microcode of AMD's processors based on the Zen microarchitecture, the Zentool. While this is a security vulnerability, ...