In the 1970s CPUs still had wildly different approaches to basic features, with the Intel 8086 being one of them. Whereas the 6502 used separate circuits for operations, and the Intel 8085 a clump ...

CISPA researchers have published technical details on “StackWarp,” a vulnerability that undermines integrity guarantees for ...

Continuing his reverse-engineering of the Intel 8087, [Ken Shirriff] covers the conditional tests that are implemented in the microcode of this floating point processing unit (FPU). This microcode ...

TL;DR: AMD has identified a security flaw, "EntrySign," affecting Zen 1 to Zen 5 CPUs, allowing attackers kernel-level access by bypassing microcode signature verification. A fix has been issued via ...

Google's researchers found a vulnerability in AMD Zen 1 - 4 chips It allows anyone to push microcode updates, even malicious ones The bug requires high privilege level in advance AMD processors, from ...

Intel recently rolled out a microcode update, version 0x116, for its Core Ultra 200S processors. The update is part of ongoing tweaks to boost stability and performance, and it quietly landed on ...

When AMD finally issued patches for its critical microcode security hole on Monday, it said that the glitch 'could lead to the loss of Secure Encrypted Virtualization protection.' AMD on Monday issued ...

What just happened? AMD has confirmed a security vulnerability in some of its processors, which was inadvertently revealed through a beta BIOS update from Asus. The flaw, described as a "microcode ...

AMD has confirmed an unpatched “processor vulnerability” that may require CISOs to isolate their systems or even air gap them until there’s a fix. AMD has had to confirm the existence of a major ...

A dangerous potato: After researchers revealed the initial details of the Sinkclose security issue, AMD announced that a firmware update would be coming for some of its desktop, mobile, and server ...