August 2023 Security Updates
This release consists of the following 74 Microsoft CVEs, and 2 advisories:
Tag CVE Base Score CVSS Vector Exploitability FAQs? Workarounds? Mitigations?
Microsoft Office ADV230003
Memory Integrity System Readiness Scan Tool ADV230004
Microsoft Exchange Server CVE-2023-21709 9.8
Microsoft Teams CVE-2023-29328 8.8
Microsoft Teams CVE-2023-29330 8.8
Windows Kernel CVE-2023-35359 7.8
Microsoft Exchange Server CVE-2023-35368 8.8
Microsoft Office Excel CVE-2023-35371 7.8
Microsoft Office Visio CVE-2023-35372 7.8
Windows Message Queuing CVE-2023-35376 6.5
Windows Message Queuing CVE-2023-35377 6.5
Windows Projected File System CVE-2023-35378 7.0
Windows Reliability Analysis Metrics Calculation Engine CVE-2023-35379 7.8
Windows Kernel CVE-2023-35380 7.8
Windows Fax and Scan Service CVE-2023-35381 8.8
Windows Kernel CVE-2023-35382 7.8 Exploitation More Likely Yes No No
Windows Message Queuing CVE-2023-35383 7.5
Windows HTML Platform CVE-2023-35384 5.4
Windows Message Queuing CVE-2023-35385 9.8
Windows Kernel CVE-2023-35386 7.8
Windows Bluetooth A2DP driver CVE-2023-35387 8.8
Microsoft Exchange Server CVE-2023-35388 8.0
Microsoft Dynamics CVE-2023-35389 6.5
.NET Core CVE-2023-35390 7.8
ASP.NET and Visual Studio CVE-2023-35391 7.1
Azure HDInsights CVE-2023-35393 4.5
Azure HDInsights CVE-2023-35394 4.6 C
Microsoft Office Visio CVE-2023-36865 7.8
Microsoft Office Visio CVE-2023-36866 7.8
Azure DevOps CVE-2023-36869 6.3
.NET Framework CVE-2023-36873 7.4 C
Reliability Analysis Metrics Calculation Engine CVE-2023-36876 7.1
Azure HDInsights CVE-2023-36877 4.5
Azure HDInsights CVE-2023-36881 4.5
Microsoft WDAC OLE DB provider for SQL CVE-2023-36882 8.8
Windows Group Policy CVE-2023-36889 5.5
Microsoft Office SharePoint CVE-2023-36890 6.5
Microsoft Office SharePoint CVE-2023-36891 8.0
Microsoft Office SharePoint CVE-2023-36892 8.0
Microsoft Office Outlook CVE-2023-36893 6.5
Microsoft Office SharePoint CVE-2023-36894 6.5
Microsoft Office Outlook CVE-2023-36895 7.8
Microsoft Office Excel CVE-2023-36896 7.8
Microsoft Office CVE-2023-36897 8.1
Tablet Windows User Interface CVE-2023-36898 7.8
ASP.NET CVE-2023-36899 7.5
Windows Common Log File System Driver CVE-2023-36900 7.8
Windows System Assessment Tool CVE-2023-36903 7.8
Windows Cloud Files Mini Filter Driver CVE-2023-36904 7.8
Windows Wireless Wide Area Network Service CVE-2023-36905 5.5
Windows Cryptographic Services CVE-2023-36906 5.5
Windows Cryptographic Services CVE-2023-36907 5.5
Role: Windows Hyper-V CVE-2023-36908 5.7
Windows Message Queuing CVE-2023-36909 6.5
Windows Message Queuing CVE-2023-36910 9.8
Windows Message Queuing CVE-2023-36911 9.8
Windows Message Queuing CVE-2023-36912 7.5
Windows Message Queuing CVE-2023-36913 6.5
Windows Smart Card CVE-2023-36914 5.5
Windows Kernel CVE-2023-38154 7.8
Microsoft Edge (Chromium-based) CVE-2023-38157 6.5
Dynamics Business Central Control CVE-2023-38167 7.2
SQL Server CVE-2023-38169 8.8
Microsoft Windows Codecs Library CVE-2023-38170 7.8
Windows Message Queuing CVE-2023-38172 7.5
Windows Defender CVE-2023-38175 7.8
Azure Arc CVE-2023-38176 7.0
.NET Core CVE-2023-38178 7.5
ASP .NET CVE-2023-38180 7.5
Microsoft Exchange Server CVE-2023-38181 8.8
Microsoft Exchange Server CVE-2023-38182 8.0
Windows LDAP - Lightweight Directory Access Protocol CVE-2023-38184 7.5
Microsoft Exchange Server CVE-2023-38185 8.8
Windows Mobile Device Management CVE-2023-38186 7.8
Azure HDInsights CVE-2023-38188 4.5
Windows Message Queuing CVE-2023-38254 6.5
We are republising 12 non-Microsoft CVEs:
CNA Tag CVE FAQs? Workarounds? Mitigations?
Advanced Micro Devices Inc. Microsoft Windows CVE-2023-20569 Yes No No
Chrome Microsoft Edge (Chromium-based) CVE-2023-4068 Yes No No
Chrome Microsoft Edge (Chromium-based) CVE-2023-4069 Yes No No
Chrome Microsoft Edge (Chromium-based) CVE-2023-4070 Yes No No
Chrome Microsoft Edge (Chromium-based) CVE-2023-4071 Yes No No
Chrome Microsoft Edge (Chromium-based) CVE-2023-4072 Yes No No
Chrome Microsoft Edge (Chromium-based) CVE-2023-4073 Yes No No
Chrome Microsoft Edge (Chromium-based) CVE-2023-4074 Yes No No
Chrome Microsoft Edge (Chromium-based) CVE-2023-4075 Yes No No
Chrome Microsoft Edge (Chromium-based) CVE-2023-4076 Yes No No
Chrome Microsoft Edge (Chromium-based) CVE-2023-4077 Yes No No
Chrome Microsoft Edge (Chromium-based) CVE-2023-4078 Yes No No
Security Update Guide Blog Posts
Date Blog Post
January 11, 2022 Coming Soon: New Security Update Guide Notification System
February 9, 2021 Continuing to Listen: Good News about the Security Update Guide API
January 13, 2021 Security Update Guide Supports CVEs Assigned by Industry Partners
December 8, 2020 Security Update Guide: Let’s keep the conversation going
November 9, 2020 Vulnerability Descriptions in the New Version of the Security Update Guide
Relevant Resources

  • The new Hotpatching feature is now generally available. Please see Hotpatching feature for Windows Server Azure Edition virtual machines (VMs) for more information.
  • Windows 10 updates are cumulative. The monthly security release includes all security fixes for vulnerabilities that affect Windows 10, in addition to non-security updates. The updates are available via the Microsoft Update Catalog. For information on lifecycle and support dates for Windows 10 operating systems, please see Windows Lifecycle Facts Sheet.
  • Microsoft is improving Windows Release Notes. For more information, please see What's next for Windows release notes.
  • A list of the latest servicing stack updates for each operating system can be found in ADV990001. This list will be updated whenever a new servicing stack update is released. It is important to install the latest servicing stack update.
  • In addition to security changes for the vulnerabilities, updates include defense-in-depth updates to help improve security-related features.
  • Customers running Windows 7, Windows Server 2008 R2, or Windows Server 2008 need to purchase the Extended Security Update to continue receiving security updates. See 4522133 for more information.

Known Issues
You can see these in more detail from the Deployments tab by selecting Known Issues column in the Edit Columns panel.


For more information about Windows Known Issues, please see Windows message center (links to currently-supported versions of Windows are in the left pane).


KB Article Applies To
5002398 SharePoint Enterprise Server 2016 Language Pack
5002422 SharePoint Server 2019 Language Pack
5002436 SharePoint Server 2019
5002437 SharePoint Server Subscription Edition
5002453 SharePoint Enterprise Server 2016
5029244 Windows 10, version 21H2, Windows 10, version 22H2
5029247 Windows 10, version 1809, Windows Server 2019
5029250 Windows Server 2022
5029263 Windows 11, version 22H2
5029296 Windows Server 2008 R2 (Monthly Rollup)
5029301 Windows Server 2008 (Security-only update)
5029307 Windows Server 2008 R2 (Security-only update)
5029318 Windows Server 2008 (Monthly Rollup)
5029388 Exchange Server 2019, and 2016
Released: 8 Aug 2023
https://msrc.microsoft.com/update-gu...eNote/2023-Aug