Microsoft · Security update · August 8, 2023

KB5029243: August 2023 security update

KB5029243, released August 8, 2023, fixes 1 CVE across 2 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent

CVEs closed

None rated Critical

Exploited

None reported

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.0157

75th percentile

Applies to

Product
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)

CVEs this fix closes

Priority	CVE	Component	Impact	CVSS	EPSS	Exploitation
Urgent	CVE-2023-35384	Windows HTML Platform	Security Feature Bypass	5.4	0.0157	More likely

Released the same day

KB5002422
Microsoft SharePoint Server 2019
KB5002435
Microsoft Office Online Server
KB5002436
Microsoft SharePoint Server 2019
KB5002437
Microsoft SharePoint Server Subscription Edition
KB5002449
Microsoft Outlook 2013 RT Service Pack 1, Microsoft Outlook 2013 Service Pack 1 (32-bit editions), Microsoft Outlook 2013 Service Pack 1 (64-bit editions)
KB5002451
Microsoft Excel 2013 RT Service Pack 1, Microsoft Excel 2013 Service Pack 1 (32-bit editions), Microsoft Excel 2013 Service Pack 1 (64-bit editions)
KB5002459
Microsoft Outlook 2016 (32-bit edition), Microsoft Outlook 2016 (64-bit edition)
KB5002463
Microsoft Excel 2016 (32-bit edition), Microsoft Excel 2016 (64-bit edition)
KB5025808
Microsoft SQL Server 2019 for x64-based Systems (CU 21)
KB5026806
Microsoft SQL Server 2022 for x64-based Systems (CU 5)
KB5028948
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 22H2 for ARM64-based Systems, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 22H2 for x64-based Systems
KB5028952
Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft .NET Framework 4.8 on Windows Server 2016 and 1 more

Vendor advisory

https://support.microsoft.com/help/5029243

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