Learn about the terminology that Microsoft uses to describe software updates. Describes the latest microcode updates from Intel for Windows 10, version 2004 and 20H2, and Windows Server, version 2004 and 20H2.

Microsoft is making available Intel-validated microcode updates that are related to Spectre Variant 3a (CVE-2018-3640 | Rogue System Register Read (RSRE)), Spectre Variant 4 (CVE-2018-3639 | Speculative Store Bypass (SSB)), and L1TF (CVE-2018-3620 and CVE-2018-3646 | L1 Terminal Fault).

Summary. Intel recently announced that they have completed software validations and have started to release new microcode for current CPU platforms in reaction to the following threats: Spectre Variant 3a (CVE-2018-3640: "Rogue System Register Read (RSRE)") Spectre Variant 4 (CVE-2018-3639: "Speculative Store Bypass (SSB)")

This update includes microcode updates from Intel for the following CPUs: Product name (CPU) Public name. CPUID. Intel Microcode update revision. Skylake H/S. 6th Generation Intel Core Processor Family. 506E3. 0xC2.

Important. This update is a standalone update that is targeted at Windows 10, version 1903 and 1909, and Windows Server 2019, version 1903 and 1909. This update also includes Intel microcode updates that were already released for these operating systems at the time of release to manufacturing (RTM).

More information. This new release includes a microcode update from Intel for the following CPUs. Install this update for the listed processors only. How to obtain and install the update. Microsoft Update Catalog. To get the standalone package for this update, go to the Microsoft Update Catalog website. Windows Update.

This update includes microcode updates from Intel for the following CPUs. This update is a stand-alone update that's available through the Microsoft Update Catalog and targeted to Windows 10, version 1709 (Fall Creators Update) and Windows Server 2016, version 1709 (Server Core).

The Surface team has become aware of new speculative execution side-channel attack variants that also affect Surface products. Mitigation of those vulnerabilities requires UEFI updates that use new microcode. For more information about the vulnerabilities and mitigations, see the following security advisories: Microsoft Security Advisory ADV180012

Summary. This article describe a microcode update for Windows 7 and Windows 8 that updates the processor microcode for the following AMD processors: AMD C-Series Processor with AMD Radeon HD Graphics. AMD C-Series Dual-Core Processor with AMD Radeon HD Graphics. AMD E-Series Dual-Core Processor. AMD E-Series Processor with AMD Radeon HD Graphics.

To get all available protections, firmware (microcode) and software updates are required. This includes microcode from device OEMs and, in some cases, updates to antivirus software. This article addresses the following vulnerabilities: CVE-2017-5715 | Branch Target Injection. CVE-2017-5753 | Bounds Check Bypass.