# Microsoft .NET Framework 4.8 on Windows Server 2012 security updates Patch Radar has 45 security fixes for Microsoft .NET Framework 4.8 on Windows Server 2012, closing 89 CVEs, 3 of which are being exploited. The newest security fix is KB5127686, released October 13, 2026. - Web page: https://patchblox.com/security/product/microsoft/microsoft-.net-framework-4.8-on-windows-server-2012 - Platform: Microsoft - Vendor: Microsoft - Supported: yes ## Security fixes, newest first | Fix | Released | Fixed in | Priority | CVEs | Exploited | |---|---|---|---|---:|---:| | [KB5127686](https://patchblox.com/security/data/fix/microsoft/kb5127686.md) | Oct 13, 2026 | | Urgent | 18 | 0 | | [KB5126049](https://patchblox.com/security/data/fix/microsoft/kb5126049.md) | Sep 8, 2026 | | High | 2 | 0 | | [KB5120704](https://patchblox.com/security/data/fix/microsoft/kb5120704.md) | Aug 11, 2026 | | High | 4 | 0 | | [KB5101009](https://patchblox.com/security/data/fix/microsoft/kb5101009.md) | Jul 14, 2026 | | High | 17 | 0 | | [KB5087067](https://patchblox.com/security/data/fix/microsoft/kb5087067.md) | May 18, 2026 | | High | 2 | 0 | | [KB5082403](https://patchblox.com/security/data/fix/microsoft/kb5082403.md) | Apr 14, 2026 | | Urgent | 3 | 0 | | [KB5066740](https://patchblox.com/security/data/fix/microsoft/kb5066740.md) | Oct 14, 2025 | | High | 1 | 0 | | [KB5050184](https://patchblox.com/security/data/fix/microsoft/kb5050184.md) | Jan 14, 2025 | | High | 1 | 0 | | [KB5044096](https://patchblox.com/security/data/fix/microsoft/kb5044096.md) | Oct 23, 2024 | | High | 2 | 0 | | [KB5041022](https://patchblox.com/security/data/fix/microsoft/kb5041022.md) | Jul 9, 2024 | | High | 1 | 0 | | [KB5034278](https://patchblox.com/security/data/fix/microsoft/kb5034278.md) | May 8, 2024 | | Patch now | 4 | 1 | | [KB5037039](https://patchblox.com/security/data/fix/microsoft/kb5037039.md) | Apr 9, 2024 | | High | 1 | 0 | | [KB5030183](https://patchblox.com/security/data/fix/microsoft/kb5030183.md) | Dec 12, 2023 | | Urgent | 5 | 0 | | [KB5032342](https://patchblox.com/security/data/fix/microsoft/kb5032342.md) | Nov 14, 2023 | | High | 2 | 0 | | [KB5029567](https://patchblox.com/security/data/fix/microsoft/kb5029567.md) | Aug 8, 2023 | | High | 2 | 0 | | [KB5029652](https://patchblox.com/security/data/fix/microsoft/kb5029652.md) | Aug 8, 2023 | | High | 2 | 0 | | [KB5027532](https://patchblox.com/security/data/fix/microsoft/kb5027532.md) | Jun 13, 2023 | | Urgent | 6 | 0 | | [KB5027541](https://patchblox.com/security/data/fix/microsoft/kb5027541.md) | Jun 13, 2023 | | Urgent | 6 | 0 | | [KB5022732](https://patchblox.com/security/data/fix/microsoft/kb5022732.md) | Feb 14, 2023 | | Urgent | 2 | 0 | | [KB5022784](https://patchblox.com/security/data/fix/microsoft/kb5022784.md) | Feb 14, 2023 | | Urgent | 2 | 0 | | [KB5021080](https://patchblox.com/security/data/fix/microsoft/kb5021080.md) | Dec 13, 2022 | | High | 1 | 0 | | [KB5021092](https://patchblox.com/security/data/fix/microsoft/kb5021092.md) | Dec 13, 2022 | | High | 1 | 0 | | [KB5020679](https://patchblox.com/security/data/fix/microsoft/kb5020679.md) | Nov 8, 2022 | | Routine | 1 | 0 | | [KB5020689](https://patchblox.com/security/data/fix/microsoft/kb5020689.md) | Nov 8, 2022 | | Routine | 1 | 0 | | [KB5012325](https://patchblox.com/security/data/fix/microsoft/kb5012325.md) | Apr 19, 2022 | | High | 1 | 0 | | [KB5012330](https://patchblox.com/security/data/fix/microsoft/kb5012330.md) | Apr 19, 2022 | | High | 1 | 0 | | [KB5009712](https://patchblox.com/security/data/fix/microsoft/kb5009712.md) | Jan 11, 2022 | | High | 1 | 0 | | [KB5009720](https://patchblox.com/security/data/fix/microsoft/kb5009720.md) | Jan 11, 2022 | | High | 1 | 0 | | [KB4602959](https://patchblox.com/security/data/fix/microsoft/kb4602959.md) | Feb 9, 2021 | | High | 1 | 0 | | [KB4603003](https://patchblox.com/security/data/fix/microsoft/kb4603003.md) | Feb 9, 2021 | | High | 1 | 0 | | [KB4566467](https://patchblox.com/security/data/fix/microsoft/kb4566467.md) | Oct 13, 2020 | | Patch now | 1 | 1 | | [KB4579978](https://patchblox.com/security/data/fix/microsoft/kb4579978.md) | Oct 13, 2020 | | Patch now | 2 | 1 | | [KB4580468](https://patchblox.com/security/data/fix/microsoft/kb4580468.md) | Oct 13, 2020 | | Routine | 1 | 0 | | [KB4570501](https://patchblox.com/security/data/fix/microsoft/kb4570501.md) | Aug 11, 2020 | | Urgent | 2 | 0 | | [KB4570507](https://patchblox.com/security/data/fix/microsoft/kb4570507.md) | Aug 11, 2020 | | Urgent | 2 | 0 | | [KB4556400](https://patchblox.com/security/data/fix/microsoft/kb4556400.md) | May 14, 2020 | | Urgent | 2 | 0 | | [KB4556404](https://patchblox.com/security/data/fix/microsoft/kb4556404.md) | May 14, 2020 | | Urgent | 2 | 0 | | [KB4534977](https://patchblox.com/security/data/fix/microsoft/kb4534977.md) | Jan 14, 2020 | | Patch now | 3 | 1 | | [KB4535103](https://patchblox.com/security/data/fix/microsoft/kb4535103.md) | Jan 14, 2020 | | Patch now | 3 | 1 | | [KB4514598](https://patchblox.com/security/data/fix/microsoft/kb4514598.md) | Sep 10, 2019 | | High | 1 | 0 | | [KB4514603](https://patchblox.com/security/data/fix/microsoft/kb4514603.md) | Sep 10, 2019 | | High | 1 | 0 | | [KB4507412](https://patchblox.com/security/data/fix/microsoft/kb4507412.md) | Jul 9, 2019 | | Urgent | 3 | 0 | | [KB4507421](https://patchblox.com/security/data/fix/microsoft/kb4507421.md) | Jul 9, 2019 | | Urgent | 3 | 0 | | [KB4498962](https://patchblox.com/security/data/fix/microsoft/kb4498962.md) | May 14, 2019 | | High | 4 | 0 | | [KB4499407](https://patchblox.com/security/data/fix/microsoft/kb4499407.md) | May 14, 2019 | | High | 4 | 0 | --- 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 Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data 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.