The Spectre and Meltdown vulnerabilities are considered two of the most severe security flaws in recent history, affecting all modern Intel processors and even some CPU models belonging to other companies. Following the premature disclosure of this threat earlier this year, manufacturers like Microsoft, Apple, and many more rushed to push out fixes in order to combat the issue.
Microsoft released Intel's Spectre and Meltdown microcode in March, followed by the availability of further updates last month. Now, the tech giant has made more of Intel's microcode updates available, along with the revision of support for a few more processors.
Intel microcode updates relevant to the following CPUs have been revised:
- Broadwell Server E, EP, EP4S
- Broadwell Server EX
- Skylake Server SP (H0, M0, U0)
- Skylake D (Bakerville)
- Skylake X (Basin Falls)
The update has been released for various versions of Windows 10, including KB4100347 for version 1803, KB4090007 for version 1709, and KB4091663 for version 1703. Furthermore, KB4091664 has been made available for Windows 10 systems still running the Anniversary Update i.e version 1607. Spectre variant 2 has primarily been targeted with this update.
The latest release can be downloaded as a standalone package via the Windows Update Catalog, or installed through the Windows Server Update Service. You can also venture over to Settings > Update & Security > Windows Update and then select Check for updates. For more information regarding the changes, you can visit the source links provided below.