Microsoft · Microsoft

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 23H2 for x64-based Systems security updates

Patch Radar has 12 security fixes for Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 23H2 for x64-based Systems, closing 41 CVEs, 1 of which is being exploited. The newest security fix is KB5126424, released September 8, 2026. This product is no longer supported.

Unsupported product1 exploited CVEs
Latest version
n/a
Release date not known
Security fixes
12
On record in Patch Radar
CVEs
41
Closed by those fixes
Exploited
1
Vendor report or CISA KEV

Security fixes, newest first

PriorityFixFixed inCVEsExploitedReleased
High KB5126424 2 Sep 8, 2026
High KB5120713 4 Aug 11, 2026
High KB5101004 17 Jul 14, 2026
High KB5087058 2 May 18, 2026
Urgent KB5082424 3 Apr 14, 2026
High KB5066133 1 Oct 14, 2025
High KB5049624 1 Jan 14, 2025
High KB5044033 2 Oct 23, 2024
High KB5039895 1 Jul 9, 2024
Patch now KB5033920 5 1 May 8, 2024
High KB5036620 1 Apr 9, 2024
High KB5032007 2 Nov 14, 2023

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