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Microsoft Releases October 2021 Security Updates

Scheduled updates for Microsoft products

Report a cyber attack: call 0300 303 5222 or email


Scheduled updates for Microsoft products

The following platforms are also known to be affected:

Active Directory Federation Services

Windows AppContainer

Windows AppX Deployment Service

Windows Bind Filter Driver

Windows Cloud Files Mini Filter Driver

Windows Common Log File System Driver

Console Window Host

Microsoft DWM Core Library

Windows Desktop Bridge

Windows DirectX

Windows Event Tracing

Windows exFAT File System

Windows Fastfat Driver

Microsoft Graphics Component


Windows Installer

Windows Kernel

Windows MSHTML Platform

Windows Nearby Sharing

Windows Network Address Translation (NAT)

Windows Print Spooler Components

Windows Remote Procedure Call Runtime

Rich Text Edit Control

Windows Storage Spaces Controller

Windows TCP/IP

Windows Text Shaping

Windows Win32K

Threat details


Microsoft has released updates to address multiple vulnerabilities in Microsoft software. A remote attacker can exploit some of these vulnerabilities to take control of an affected system.

Remediation advice

Affected organisations are encouraged to review Microsoft’s October 2021 Security Update Summary and Deployment Information and apply the necessary updates.

Last edited: 13 October 2021 12:36 pm