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Microsoft Deploys KB4558130 And KB4497165 To Fix Intel CPU Security Issues Reported By Users

Image Source: Pixabay

Microsoft has released two security updates for the company’s Windows 10 and Windows Server operating systems to address security flaws found in many Intel processors. The updates address issues related to the Spectre and Meltdown flaws discovered in 2018,

Tip: you can find out if your systems are affected by the security issues in several ways. On Windows, you can use PowerShell or a third-party program like InSpectre, and if you are using Linux, you may find this checkup tool useful.

The updates that Microsoft released this week are for the following operating system versions:

  • KB4558130: Windows 10 version 2004 and Windows Server version 2004.
  • KB4497165: Windows 10 version 1903 and 1909, Windows Server version 1903 and 1909.

The updates address the following flaws:

  • 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)

Microsoft notes that Intel has “completed software validations” and released new microcode for “current CPU platforms” to fix these threats.

The updates should only be installed on systems with affected processors. You need to check the support page on the Microsoft website to find out if the installed processor on a system is supported by the update.

Since the flaws affect most Intel processors released by the company in recent time, it is very likely that the processor is on the list (unless it is very old or rare).

How to obtain the update

Microsoft plans to make the update available via Windows Update, but only for “some select products (CPUs)”. The company does not reveal the names of the processors. If you check on Windows Updates and don’t see the update, you need to download it from the company’s Microsoft Update Catalog website to download and install it manually.

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Direct download links:

Note that you need to verify that the CPU of the system is supported by the updates before you start the process to avoid any issues.

Image Source: Pixabay

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