# Microsoft .NET Framework 3.5 on Windows Server 2016 security updates

Patch Radar has 17 security fixes for Microsoft .NET Framework 3.5 on Windows Server 2016, closing 26 CVEs, 1 of which is being exploited. The newest security fix is KB4571694 (14393.3866), released August 11, 2020. This product is no longer supported.

- Web page: https://patchblox.com/security/product/microsoft/microsoft-.net-framework-3.5-on-windows-server-2016
- Platform: Microsoft
- Vendor: Microsoft
- Supported: no

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [KB4571694](https://patchblox.com/security/data/fix/microsoft/kb4571694.md) | Aug 11, 2020 | 14393.3866 | Patch now | 83 | 2 |
| [KB4516044](https://patchblox.com/security/data/fix/microsoft/kb4516044.md) | Sep 10, 2019 | 14393.3204 | Patch now | 50 | 2 |
| [KB4507460](https://patchblox.com/security/data/fix/microsoft/kb4507460.md) | Jul 9, 2019 | 14393.3085 | Patch now | 42 | 2 |
| [KB4494440](https://patchblox.com/security/data/fix/microsoft/kb4494440.md) | May 14, 2019 | 14393.2969 | Patch now | 52 | 2 |
| [KB4487026](https://patchblox.com/security/data/fix/microsoft/kb4487026.md) | Feb 12, 2019 | 14393.2791 | Patch now | 44 | 1 |
| [KB4480961](https://patchblox.com/security/data/fix/microsoft/kb4480961.md) | Jan 8, 2019 | 14393.2724 | Patch now | 28 | 2 |
| [KB4471321](https://patchblox.com/security/data/fix/microsoft/kb4471321.md) | Dec 11, 2018 | 14393.2665 | Patch now | 21 | 2 |
| [KB4457131](https://patchblox.com/security/data/fix/microsoft/kb4457131.md) | Sep 11, 2018 | 14393.2485 | Patch now | 37 | 1 |
| [KB4343887](https://patchblox.com/security/data/fix/microsoft/kb4343887.md) | Aug 14, 2018 | 14393.2430 | Patch now | 37 | 3 |
| [KB4346877](https://patchblox.com/security/data/fix/microsoft/kb4346877.md) | Jul 30, 2018 | 14393.2396 | High | 1 | 0 |
| [KB4345418](https://patchblox.com/security/data/fix/microsoft/kb4345418.md) | Jul 16, 2018 | 14393.2368 | Urgent | 21 | 0 |
| [KB4338814](https://patchblox.com/security/data/fix/microsoft/kb4338814.md) | Jul 10, 2018 | 14393.2363 | Urgent | 21 | 0 |
| [KB4103723](https://patchblox.com/security/data/fix/microsoft/kb4103723.md) | May 8, 2018 | 14393.2248 | Patch now | 37 | 2 |
| [KB4056890](https://patchblox.com/security/data/fix/microsoft/kb4056890.md) | Jan 3, 2018 | 14393.2007 | Urgent | 23 | 0 |
| [KB4038782](https://patchblox.com/security/data/fix/microsoft/kb4038782.md) | Sep 12, 2017 | 14393.1715 | Patch now | 59 | 1 |
| [KB4019472](https://patchblox.com/security/data/fix/microsoft/kb4019472.md) | May 9, 2017 | 14393.1198 | Patch now | 41 | 3 |
| [KB4015217](https://patchblox.com/security/data/fix/microsoft/kb4015217.md) | Apr 11, 2017 |  | Patch now | 32 | 1 |

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Data as of 2026-11-11T13:47:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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