Microsoft · Security update · May 8, 2024

KB5033917: May 2024 security update

KB5033917, released May 8, 2024, fixes 2 CVEs in Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022, 23H2 Edition (Server Core installation). One of them is being exploited (CVE-2024-29059); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

Patch now1 on CISA KEVUnsupported product

CVEs closed

None rated Critical

Exploited

CVE-2024-29059

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.9862

99th percentile

Priority of the 2 CVEs

Patch now 1
                                Urgent 0
                                High 0
                                Routine 1

Applies to

Product
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022, 23H2 Edition (Server Core installation)

CVEs this fix closes

Priority	CVE	Component	Impact	CVSS	EPSS	Exploitation
Patch now	CVE-2024-29059	.NET Framework	Information Disclosure	7.5	0.9862	KEVExploited
Routine	CVE-2023-36042	Visual Studio	Denial of Service	6.2	0.0079	Exploitation Less Likely

Released the same day

KB5033910
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
KB5033920
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, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 23H2 for ARM64-based Systems and 1 more
KB5034269
Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1, Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 and 3 more
KB5034270
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2, Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2, Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 and 5 more
KB5034272
Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022, Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022 (Server Core installation), Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022 and 2 more
KB5034273
Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems, Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for ARM64-based Systems, Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems and 6 more
KB5034274
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for 32-bit Systems, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for ARM64-based Systems, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for x64-based Systems and 3 more
KB5034275
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for 32-bit Systems, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for ARM64-based Systems, Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for x64-based Systems and 3 more
KB5034276
Microsoft .NET Framework 3.5 AND 4.8 on Windows 11 version 21H2 for ARM64-based Systems, Microsoft .NET Framework 3.5 AND 4.8 on Windows 11 version 21H2 for x64-based Systems, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 21H2 for ARM64-based Systems and 1 more
KB5034277
Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1, Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 and 3 more
KB5034278
Microsoft .NET Framework 3.5 on Windows Server 2012, Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation), Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 and 3 more
KB5034279
Microsoft .NET Framework 3.5 on Windows Server 2012 R2, Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation), Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 and 3 more

Vendor advisory

https://support.microsoft.com/help/5033917

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