Microsoft security advisory – August 2026 monthly rollup (AV26-804)

Serial Number: AV26-804
Date: August 11, 2026

As of August 11, 2026, Microsoft is affected by vulnerabilities in the following products:

  • .NET 10.0 installed on Linux
  • .NET 10.0 installed on Mac OS
  • .NET 10.0 installed on Windows
  • .NET 8.0 installed on Linux
  • .NET 8.0 installed on Mac OS
  • .NET 8.0 installed on Windows
  • .NET 9.0 installed on Linux
  • .NET 9.0 installed on Mac OS
  • .NET 9.0 installed on Windows
  • App Installer
  • Application Insights Profiler
  • Azure Active Directory
  • Azure Confidential Ledger
  • Azure CycleCloud
  • Azure Kubernetes Service
  • Azure Logic Apps
  • Azure Monitor Agent Linux Extension
  • Azure SQL Database
  • Azure SQL Managed Instance
  • Azure SRE Agent
  • Azure Service Bus
  • Azure Storage Explorer
  • Microsoft .NET Framework 3.5
  • Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2
  • Microsoft .NET Framework 3.5 AND 4.7.2
  • Microsoft .NET Framework 3.5 AND 4.8
  • Microsoft .NET Framework 3.5 AND 4.8.1
  • Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
  • Microsoft .NET Framework 4.8
  • Microsoft .NET Framework 4.8.1
  • Microsoft 365 Admin Center
  • Microsoft 365 Apps for Enterprise
  • Microsoft Access 2016
  • Microsoft Defender for Endpoint for Mac
  • Microsoft Dynamics 365 (on-premises)
  • Microsoft Dynamics 365 Business Central 2024
  • Microsoft Dynamics 365 Business Central 2026
  • Microsoft Dynamics 365 Business Central Release Wave 1 2025
  • Microsoft Dynamics 365 Business Central Release Wave 2 2025
  • Microsoft Entra Connect
  • Microsoft Entra ID
  • Microsoft Entra Provisioning Service
  • Microsoft Excel 2016
  • Microsoft Exchange Server 2016
  • Microsoft Exchange Server 2019
  • Microsoft Exchange Server Subscription Edition RTM
  • Microsoft Office 2016
  • Microsoft Office 2019
  • Microsoft Office 365 for Mac
  • Microsoft Office LTSC 2021
  • Microsoft Office LTSC 2024
  • Microsoft Office LTSC for Mac 2021
  • Microsoft Office LTSC for Mac 2024
  • Microsoft Outlook 2016
  • Microsoft Planetary Computer Pro (GeoCatalog)
  • Microsoft Power Apps
  • Microsoft PowerPoint 2016
  • Microsoft Purview eDiscovery
  • Microsoft SharePoint Enterprise Server 2016
  • Microsoft SharePoint Online
  • Microsoft SharePoint Server 2019
  • Microsoft SharePoint Server Subscription Edition
  • Microsoft Teams
  • Microsoft Teams for Android
  • Microsoft Teams for iOS
  • Microsoft Visual Studio 2022
  • Microsoft Visual Studio 2026
  • Microsoft Visual Studio Code CoPilot Chat Extension
  • Microsoft Word 2016
  • OneDrive for MacOS
  • Power BI Report Server
  • PowerShell 7.4
  • PowerShell 7.5
  • PowerShell 7.6
  • Python extension for Visual Studio Code
  • Visual Studio Code
  • Windows 10
  • Windows 11
  • Windows App Client for Windows Desktop
  • Windows Server 2012
  • Windows Server 2012 R2
  • Windows Server 2016
  • Windows Server 2019
  • Windows Server 2022
  • Windows Server 2025

The Cyber Centre encourages users and administrators to review the web link provided, perform the suggested mitigations, and apply the necessary updates.

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