Intel is to release new microcode via Windows update for Spectre variants. further details can be found here:
https://support.microsoft.com/en-us/help/4465065/kb4465065-intel-microcode-updates:
https://support.microsoft.com/en-us/help/4465065/kb4465065-intel-microcode-updates:
KB4465065: Intel microcode updates
Applies to: Windows Server 2019, all versions Windows 10, version 1809
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)")
- L1TF (CVE-2018-3620, CVE-2018-3646: "L1 Terminal Fault")