Microsoft · Security update · June 13, 2023

KB5027256: June 2023 security update

KB5027256, released June 13, 2023, fixes 18 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.

UrgentUnsupported product

CVEs closed

3 rated Critical

Exploited

None reported

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.0539

92nd percentile

Priority of the 18 CVEs

Patch now 0
                                Urgent 6
                                High 10
                                Routine 2

Applies to

Product
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)

CVEs this fix closes

Priority	CVE	Component	Impact	CVSS	EPSS	Exploitation
Urgent	CVE-2023-29371	Windows Win32K	Elevation of Privilege	7.8	0.0539	More likely
Urgent	CVE-2023-29358	Windows GDI	Elevation of Privilege	7.8	0.0473	More likely
Urgent	CVE-2023-32015	Windows PGM	Remote Code Execution	9.8	0.0204	Exploitation Less Likely
Urgent	CVE-2023-29363	Windows PGM	Remote Code Execution	9.8	0.0194	Exploitation Less Likely
Urgent	CVE-2023-32014	Windows PGM	Remote Code Execution	9.8	0.0194	Exploitation Less Likely
Urgent	CVE-2023-29359	Windows Win32K	Elevation of Privilege	7.8	0.0055	More likely
High	CVE-2023-32011	Windows iSCSI	Denial of Service	7.5	0.0194	Exploitation Less Likely
High	CVE-2023-29351	Windows Group Policy	Elevation of Privilege	8.1	0.0181	Exploitation Less Likely
High	CVE-2023-29362	Remote Desktop Client	Remote Code Execution	8.8	0.0135	Exploitation Less Likely
High	CVE-2023-29372	Microsoft WDAC OLE DB provider for SQL	Remote Code Execution	8.8	0.0135	Exploitation Less Likely
High	CVE-2023-29373	Windows ODBC Driver	Remote Code Execution	8.8	0.0135	Exploitation Less Likely
High	CVE-2023-29365	Microsoft Windows Codecs Library	Remote Code Execution	7.8	0.0072	Exploitation Less Likely
High	CVE-2023-32017	Microsoft Printer Drivers	Remote Code Execution	7.8	0.0050	Exploitation Less Likely
High	CVE-2023-29346	Windows NTFS	Elevation of Privilege	7.8	0.0049	Exploitation Less Likely
High	CVE-2023-29364	Windows Authentication Methods	Elevation of Privilege	7.0	0.0037	Exploitation Less Likely
High	CVE-2023-29368	Windows Filtering	Elevation of Privilege	7.0	0.0037	Exploitation Less Likely
Routine	CVE-2023-32016	Windows Installer	Information Disclosure	5.5	0.0067	Exploitation Less Likely
Routine	CVE-2023-32020	Role: DNS Server	Spoofing	5.6	0.0066	Exploitation Less Likely

Released the same day

KB5002401
Microsoft Office Online Server
KB5002402
Microsoft SharePoint Server 2019
KB5002403
Microsoft SharePoint Server 2019
KB5002404
Microsoft SharePoint Enterprise Server 2016
KB5002405
Microsoft Excel 2016 (32-bit edition), Microsoft Excel 2016 (64-bit edition)
KB5002414
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)
KB5002416
Microsoft SharePoint Server Subscription Edition
KB5025903
Microsoft Exchange Server 2016 Cumulative Update 23
KB5026261
Microsoft Exchange Server 2019 Cumulative Update 12, Microsoft Exchange Server 2019 Cumulative Update 13
KB5026454
Microsoft Visual Studio 2013 Update 5
KB5026455
Microsoft Visual Studio 2015 Update 3
KB5027119
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

Vendor advisory

https://support.microsoft.com/help/5027256

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/fix/microsoft/kb5027256">KB5027256 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Which machines still need it?

Patchblox reads the OS build on every Windows machine, from Intune, ConfigMgr or its own agent, and shows which ones are still below the fixed build.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.