Microsoft Releases April 2021 Security Updates

Threat ID:: CC-3824
Threat Severity:: Information only
Published:: 15 April 2021 12:16 PM

Report a cyber attack: call 0300 303 5222 or email [email protected]

Affected platforms

The following platforms are known to be affected:

Versions: Chromium-based

Microsoft Edge

Microsoft Exchange Server

Microsoft Outlook

Microsoft Word

Microsoft Visual Studio

The following platforms are also known to be affected:

Azure AD Web Sign-in

Azure DevOps

Azure Sphere

Microsoft Graphics Component

Microsoft Internet Messaging API

Microsoft NTFS

Microsoft Office Excel

Microsoft Office SharePoint

Microsoft Windows Codecs Library

Microsoft Windows Speech

Open Source Software

Visual Studio Code

Visual Studio Code - GitHub Pull Requests and Issues Extension

Visual Studio Code - Kubernetes Tools

Visual Studio Code - Maven for Java Extension

Windows Application Compatibility Cache

Windows AppX Deployment Extensions

Windows Console Driver

Windows Diagnostic Hub

Windows Early Launch Antimalware Driver

Windows ELAM

Windows Event Tracing

Windows Installer

Windows Kernel

Windows Media Player

Windows Network File System

Windows Overlay Filter

Windows Portmapping

Windows Registry

Windows Remote Procedure Call Runtime

Windows Resource Manager

Windows Secure Kernel Mode

Windows Services and Controller App

Windows SMB Server

Windows TCP/IP

Windows Win32K

Windows WLAN Auto Config Service

Threat details

Introduction

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

Organisations are encouraged to review Microsoft’s April 2021 Security Update Summary and Deployment Information and apply the necessary updates.

Last edited: 15 April 2021 1:50 pm