Microsoft · Microsoft

Microsoft .NET Framework 3.5 on Windows Server 2012 security updates

Patch Radar has 63 security fixes for Microsoft .NET Framework 3.5 on Windows Server 2012, closing 95 CVEs, 4 of which are being exploited. The newest security fix is KB5127660, released October 13, 2026.

4 exploited CVEs
Latest version
n/a
Release date not known
Security fixes
63
On record in Patch Radar
CVEs
95
Closed by those fixes
Exploited
4
Vendor report or CISA KEV

Security fixes, newest first

PriorityFixFixed inCVEsExploitedReleased
Urgent KB5127660 17 Oct 13, 2026
High KB5120716 3 Aug 11, 2026
High KB5100984 11 Jul 14, 2026
High KB5087048 2 May 18, 2026
Urgent KB5082398 3 Apr 14, 2026
High KB5066740 1 Oct 14, 2025
High KB5044096 2 Oct 23, 2024
High KB5041022 1 Jul 9, 2024
Patch now KB5034278 4 1 May 8, 2024
Urgent KB5030183 5 Dec 12, 2023
High KB5032342 2 Nov 14, 2023
Urgent KB5027532 6 Jun 13, 2023
Urgent KB5027541 6 Jun 13, 2023
Urgent KB5022732 2 Feb 14, 2023
Urgent KB5022784 2 Feb 14, 2023
High KB5021080 1 Dec 13, 2022
High KB5021092 1 Dec 13, 2022
High KB5012325 1 Apr 19, 2022
High KB5012330 1 Apr 19, 2022
High KB5009712 1 Jan 11, 2022
High KB5009720 1 Jan 11, 2022
Patch now KB4566467 1 1 Oct 13, 2020
Patch now KB4579978 2 1 Oct 13, 2020
Routine KB4580468 1 Oct 13, 2020
Urgent KB4570501 2 Aug 11, 2020
Urgent KB4570507 2 Aug 11, 2020
Urgent KB4556400 2 May 14, 2020
Urgent KB4556404 2 May 14, 2020
Patch now KB4534977 3 1 Jan 14, 2020
Patch now KB4535103 3 1 Jan 14, 2020
High KB4514598 1 Sep 10, 2019
High KB4514603 1 Sep 10, 2019
Urgent KB4507412 3 Jul 9, 2019
Urgent KB4507421 3 Jul 9, 2019
High KB4498962 4 May 14, 2019
High KB4499407 4 May 14, 2019
High KB4487079 2 Feb 12, 2019
High KB4487122 2 Feb 12, 2019
High KB4481482 1 Jan 8, 2019
High KB4481483 1 Jan 8, 2019
Urgent KB4470601 2 Dec 11, 2018
Urgent KB4470629 2 Dec 11, 2018
Urgent KB4457042 1 Sep 12, 2018
Urgent KB4457053 1 Sep 12, 2018
High KB4344150 2 Aug 14, 2018
High KB4344175 2 Aug 14, 2018
High KB4338421 2 Jul 10, 2018
High KB4338610 2 Jul 10, 2018
High KB4095512 2 May 8, 2018
High KB4095872 2 May 8, 2018
High KB4054175 2 Jan 18, 2018
High KB4054997 2 Jan 18, 2018
Patch now KB4040965 1 1 Sep 12, 2017
Patch now KB4040979 1 1 Sep 12, 2017
High KB4019110 1 May 9, 2017
High KB4019113 1 May 9, 2017
Urgent KB4014982 1 Apr 11, 2017
Urgent KB4014986 1 Apr 11, 2017
High KB3163246 1 Nov 8, 2016
High KB3188731 1 Oct 11, 2016
High KB3188741 1 Oct 11, 2016
High KB3142025 1 May 10, 2016
Urgent KB3142043 1 Apr 12, 2016

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.