The links below provide further information as well as guidance where to obtain OS (Microsoft) and system ROM updates (HPE):

Microsoft – Windows Server:
https://support.microsoft.com/en-us/help/4072698/windows-server-guidance-to-protect-against-the-speculative-execution

NOTE: there are two steps required:
- Step 1: Download and install the Windows Server OS updates listed in the table referenced in the Microsoft support article above from Windows Update
- Step 2: A set of registry keys has to be enabled in order to switch on the mitigations introduced by the OS updates installed in step 1, please see the instructions in the support article.

Should Windows Update not offer the OS updates listed in the support article linked above, please refer for guidance to the following Microsoft resource covering a potential issue with a small subset of anti-virus products: https://support.microsoft.com/en-us/help/4072699/important-information-regarding-the-windows-security-updates-released

HPE – System ROM updates (may require active warranty and/or HPE support agreement):
https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-a00039267en_us

NOTE: The bulletin is being updated periodically as more system ROM updates become available, please check back frequently should your specific ProLiant Gen8 or Gen9 server model be listed under ‘Scope’ for system ROM future availability.

Download Bios für ML350 Gen10 Version 1.28

Download Bios für ML350 Gen9 Version 2.54

Download Bios für ML350 Gen8

Download Bios für ML310e Gen8 v2 (P78)

Download Bios für ML110 Gen9 (P99)

http://h22208.www2.hpe.com/eginfolib/securityalerts/SCAM/Side_Channel_Analysis_Method.html

Quelle: HP