# KB4569751: August 2020 security update KB4569751, released August 11, 2020, fixes 2 CVEs across 16 products. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported. - Web page: https://patchblox.com/security/fix/microsoft/kb4569751 - Platform: Microsoft - Released: Aug 11, 2020 - Priority: Urgent (Closes CVE-2020-1046, rated Critical) - CVEs: 2, exploited: 0, on CISA KEV: 0 - Vendor advisory: https://support.microsoft.com/help/4569751 ## Applies to | Product | Release | Fixed in | |---|---|---| | [Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-and-4.8-on-windows-10-version-1903-for-32-bit-systems.md) | | | | [Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-and-4.8-on-windows-10-version-1903-for-arm64-based-systems.md) | | | | [Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-and-4.8-on-windows-10-version-1903-for-x64-based-systems.md) | | | | [Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-and-4.8-on-windows-10-version-1909-for-32-bit-systems.md) | | | | [Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-and-4.8-on-windows-10-version-1909-for-arm64-based-systems.md) | | | | [Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-and-4.8-on-windows-10-version-1909-for-x64-based-systems.md) | | | | [Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-and-4.8-on-windows-server-version-1903-server-core-installation.md) | | | | [Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1909 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-and-4.8-on-windows-server-version-1909-server-core-installation.md) | | | | [Microsoft .NET Framework 3.5 on Windows 10 Version 1903 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-on-windows-10-version-1903-for-32-bit-systems.md) | | | | [Microsoft .NET Framework 3.5 on Windows 10 Version 1903 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-on-windows-10-version-1903-for-arm64-based-systems.md) | | | | [Microsoft .NET Framework 3.5 on Windows 10 Version 1903 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-on-windows-10-version-1903-for-x64-based-systems.md) | | | | [Microsoft .NET Framework 3.5 on Windows 10 Version 1909 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-on-windows-10-version-1909-for-32-bit-systems.md) | | | | [Microsoft .NET Framework 3.5 on Windows 10 Version 1909 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-on-windows-10-version-1909-for-arm64-based-systems.md) | | | | [Microsoft .NET Framework 3.5 on Windows 10 Version 1909 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-on-windows-10-version-1909-for-x64-based-systems.md) | | | | [Microsoft .NET Framework 3.5 on Windows Server, version 1903 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-on-windows-server-version-1903-server-core-installation.md) | | | | [Microsoft .NET Framework 3.5 on Windows Server, version 1909 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-on-windows-server-version-1909-server-core-installation.md) | | | ## CVEs this fix closes | CVE | Priority | Component | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2020-1046](https://patchblox.com/security/data/cve/CVE-2020-1046.md) | Urgent | .NET Framework | n/a | 0.0376 | | | [CVE-2020-1476](https://patchblox.com/security/data/cve/CVE-2020-1476.md) | High | .NET Framework | n/a | 0.0113 | | --- Data as of 2026-11-07T00:32:44Z 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