Summary:
Intel Processor(CPU) microcode update for Windows 10 Version 2004 addressing Data Sampling security vulnerabilities
Comments:
- Windows 10 Version 2004 Microcode Update were released on September 1 2020(KB4558130)
- For specific details – see KB article – KB4558130
- This Intel Microcode update for Windows 10 Version 2004 address 4 security vulnerabilities
- CVE-2019-11091 – Microarchitectural Data Sampling Uncacheable Memory (MDSUM)
- CVE-2018-12126 – Microarchitectural Store Buffer Data Sampling (MSBDS)
- CVE-2018-12127 – Microarchitectural Load Port Data Sampling (MLPDS)
- CVE-2018-12130 – Microarchitectural Fill Buffer Data Sampling (MFBDS)
- Windows 10 Version 2004 Intel microcode updates with few exceptions are stand-alone updates and currently only available in the Microsoft Catalog. A few Intel processors will receive these updates via Windows Update. To determine if the microcode update will be available in Windows Update for your CPU see the KB article and reference Footnote #2. CPU’s capable of updating microcode via Windows Update are shown in the KB article with a superscripted ‘2’ in the CPU code name field(first column) in the KB table of CPU’s
- This Microcode update includes previous released microcode updates for applicable CPU’s
- Applicable to Windows 10 2004 and for the specific Intel CPU’s shown in the Knowledge Base article
How to Obtain:
- Microsoft Catalog
- http://www.catalog.update.microsoft.com/Search.aspx?q=KB4558130
- Note: This update is available for Windows 10 Version 2004 different architectures (x64, x86, and Server 2004). If downloading, ensure the correct file is chosen.
Additional information:
- Microsoft KB article _ KB4558130
- Windows 10 Forums Article (Editor Note: Includes and easier to read table than the Microsoft KB article)
- Windows 10 Bleeping Computer Article (Editor Note: Includes a link for CPU identification software)
Revisions:
Sept 01 2020: Initial Draft Date
Sept 02 2020: Original Publish Date
Sept 29 2020: Added Windows 10 Forums and Bleeping Computer reference articles under ‘Additional Information’
Windows Unplugged 