# KB4540673: March 2020 cumulative update for Windows 10 1903 KB4540673, released March 10, 2020, fixes 95 CVEs across 20 products. One of them is being exploited (CVE-2020-0787); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported. - Web page: https://patchblox.com/security/fix/microsoft/kb4540673 - Platform: Microsoft - Released: Mar 10, 2020 - Priority: Patch now (Closes CVE-2020-0787, exploited (CISA KEV, ransomware)) - CVEs: 95, exploited: 1, on CISA KEV: 1 - Vendor advisory: https://support.microsoft.com/help/4540673 ## Applies to | Product | Release | Fixed in | |---|---|---| | [Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/internet-explorer-11-on-windows-10-version-1903-for-32-bit-systems.md) | | | | [Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/internet-explorer-11-on-windows-10-version-1903-for-arm64-based-systems.md) | | | | [Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/internet-explorer-11-on-windows-10-version-1903-for-x64-based-systems.md) | | | | [Internet Explorer 11 on Windows 10 Version 1909 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/internet-explorer-11-on-windows-10-version-1909-for-32-bit-systems.md) | | | | [Internet Explorer 11 on Windows 10 Version 1909 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/internet-explorer-11-on-windows-10-version-1909-for-arm64-based-systems.md) | | | | [Internet Explorer 11 on Windows 10 Version 1909 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/internet-explorer-11-on-windows-10-version-1909-for-x64-based-systems.md) | | | | [Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/microsoft-edge-edgehtml-based-on-windows-10-version-1903-for-32-bit-systems.md) | | | | [Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-edge-edgehtml-based-on-windows-10-version-1903-for-arm64-based-systems.md) | | | | [Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-edge-edgehtml-based-on-windows-10-version-1903-for-x64-based-systems.md) | | | | [Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/microsoft-edge-edgehtml-based-on-windows-10-version-1909-for-32-bit-systems.md) | | | | [Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-edge-edgehtml-based-on-windows-10-version-1909-for-arm64-based-systems.md) | | | | [Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-edge-edgehtml-based-on-windows-10-version-1909-for-x64-based-systems.md) | | | | [Windows 10 Version 1903 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1903-for-32-bit-systems.md) | | | | [Windows 10 Version 1903 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1903-for-arm64-based-systems.md) | | | | [Windows 10 Version 1903 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1903-for-x64-based-systems.md) | | | | [Windows 10 Version 1909 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1909-for-32-bit-systems.md) | | | | [Windows 10 Version 1909 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1909-for-arm64-based-systems.md) | | | | [Windows 10 Version 1909 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1909-for-x64-based-systems.md) | | | | [Windows Server, version 1903 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/windows-server-version-1903-server-core-installation.md) | | | | [Windows Server, version 1909 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/windows-server-version-1909-server-core-installation.md) | | | ## CVEs this fix closes | CVE | Priority | Component | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2020-0787](https://patchblox.com/security/data/cve/CVE-2020-0787.md) | Patch now | Microsoft Windows | 7.8 | 0.4252 | CISA KEV, Ransomware | | [CVE-2020-0883](https://patchblox.com/security/data/cve/CVE-2020-0883.md) | Urgent | Microsoft Graphics Component | 6.7 | 0.2198 | | | [CVE-2020-0881](https://patchblox.com/security/data/cve/CVE-2020-0881.md) | Urgent | Microsoft Graphics Component | 6.7 | 0.1678 | | | [CVE-2020-0825](https://patchblox.com/security/data/cve/CVE-2020-0825.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.1330 | | | [CVE-2020-0827](https://patchblox.com/security/data/cve/CVE-2020-0827.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.1330 | | | [CVE-2020-0816](https://patchblox.com/security/data/cve/CVE-2020-0816.md) | Urgent | Microsoft Edge (HTML-based) | 4.2 | 0.1066 | | | [CVE-2019-1225](https://patchblox.com/security/data/cve/CVE-2019-1225.md) | Urgent | Windows RDP | 7.5 | 0.1052 | More likely | | [CVE-2020-0848](https://patchblox.com/security/data/cve/CVE-2020-0848.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0959 | | | [CVE-2020-0684](https://patchblox.com/security/data/cve/CVE-2020-0684.md) | Urgent | Microsoft Windows | 8.8 | 0.0896 | | | [CVE-2020-0823](https://patchblox.com/security/data/cve/CVE-2020-0823.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0885 | | | [CVE-2020-0826](https://patchblox.com/security/data/cve/CVE-2020-0826.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0885 | | | [CVE-2020-0828](https://patchblox.com/security/data/cve/CVE-2020-0828.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0885 | | | [CVE-2020-0829](https://patchblox.com/security/data/cve/CVE-2020-0829.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0885 | | | [CVE-2020-0831](https://patchblox.com/security/data/cve/CVE-2020-0831.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0885 | | | [CVE-2020-0768](https://patchblox.com/security/data/cve/CVE-2020-0768.md) | Urgent | Microsoft Browsers | 4.2 | 0.0873 | | | [CVE-2020-0830](https://patchblox.com/security/data/cve/CVE-2020-0830.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0873 | | | [CVE-2020-0833](https://patchblox.com/security/data/cve/CVE-2020-0833.md) | Urgent | Microsoft Scripting Engine | 7.5 | 0.0868 | More likely | | [CVE-2020-0832](https://patchblox.com/security/data/cve/CVE-2020-0832.md) | Urgent | Microsoft Scripting Engine | 6.4 | 0.0868 | More likely | | [CVE-2019-1224](https://patchblox.com/security/data/cve/CVE-2019-1224.md) | Urgent | Windows RDP | 7.5 | 0.0836 | More likely | | [CVE-2019-1226](https://patchblox.com/security/data/cve/CVE-2019-1226.md) | Urgent | Windows RDP | 9.8 | 0.0819 | More likely | | [CVE-2020-0847](https://patchblox.com/security/data/cve/CVE-2020-0847.md) | Urgent | Microsoft Scripting Engine | 6.4 | 0.0794 | More likely | | [CVE-2020-0812](https://patchblox.com/security/data/cve/CVE-2020-0812.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0787 | | | [CVE-2020-0811](https://patchblox.com/security/data/cve/CVE-2020-0811.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.0771 | | | [CVE-2020-0824](https://patchblox.com/security/data/cve/CVE-2020-0824.md) | Urgent | Internet Explorer | 7.5 | 0.0721 | More likely | | [CVE-2020-0690](https://patchblox.com/security/data/cve/CVE-2020-0690.md) | Urgent | Microsoft Graphics Component | 7.0 | 0.0697 | More likely | | [CVE-2020-0807](https://patchblox.com/security/data/cve/CVE-2020-0807.md) | Urgent | Microsoft Windows | 7.8 | 0.0561 | | | [CVE-2020-0809](https://patchblox.com/security/data/cve/CVE-2020-0809.md) | Urgent | Microsoft Windows | 7.8 | 0.0561 | | | [CVE-2020-0801](https://patchblox.com/security/data/cve/CVE-2020-0801.md) | Urgent | Microsoft Windows | 7.8 | 0.0531 | | | [CVE-2020-0869](https://patchblox.com/security/data/cve/CVE-2020-0869.md) | Urgent | Microsoft Windows | 7.8 | 0.0466 | | | [CVE-2020-0887](https://patchblox.com/security/data/cve/CVE-2020-0887.md) | Urgent | Microsoft Graphics Component | 7.0 | 0.0224 | More likely | | [CVE-2020-0877](https://patchblox.com/security/data/cve/CVE-2020-0877.md) | Urgent | Microsoft Graphics Component | 7.0 | 0.0102 | More likely | | [CVE-2020-0788](https://patchblox.com/security/data/cve/CVE-2020-0788.md) | Urgent | Microsoft Graphics Component | 7.8 | 0.0096 | More likely | | [CVE-2020-0876](https://patchblox.com/security/data/cve/CVE-2020-0876.md) | High | Microsoft Windows | 7.0 | 0.0594 | | | [CVE-2020-0645](https://patchblox.com/security/data/cve/CVE-2020-0645.md) | High | Windows IIS | 7.5 | 0.0390 | | | [CVE-2020-0814](https://patchblox.com/security/data/cve/CVE-2020-0814.md) | High | Windows Installer | 7.8 | 0.0121 | | | [CVE-2020-0791](https://patchblox.com/security/data/cve/CVE-2020-0791.md) | High | Microsoft Graphics Component | 7.8 | 0.0112 | | | [CVE-2020-0798](https://patchblox.com/security/data/cve/CVE-2020-0798.md) | High | Windows Installer | 7.8 | 0.0104 | | | [CVE-2020-0797](https://patchblox.com/security/data/cve/CVE-2020-0797.md) | High | Microsoft Windows | 7.8 | 0.0102 | | | [CVE-2020-0800](https://patchblox.com/security/data/cve/CVE-2020-0800.md) | High | Microsoft Windows | 7.8 | 0.0102 | | | [CVE-2020-0865](https://patchblox.com/security/data/cve/CVE-2020-0865.md) | High | Microsoft Windows | 7.8 | 0.0102 | | | [CVE-2020-0842](https://patchblox.com/security/data/cve/CVE-2020-0842.md) | High | Microsoft Windows | 7.8 | 0.0101 | | | [CVE-2020-0843](https://patchblox.com/security/data/cve/CVE-2020-0843.md) | High | Microsoft Windows | 7.8 | 0.0101 | | | [CVE-2020-0802](https://patchblox.com/security/data/cve/CVE-2020-0802.md) | High | Microsoft Windows | 7.8 | 0.0101 | | | [CVE-2020-0803](https://patchblox.com/security/data/cve/CVE-2020-0803.md) | High | Microsoft Windows | 7.8 | 0.0101 | | | [CVE-2020-0810](https://patchblox.com/security/data/cve/CVE-2020-0810.md) | High | Microsoft Windows | 7.8 | 0.0100 | | | [CVE-2020-0779](https://patchblox.com/security/data/cve/CVE-2020-0779.md) | High | Microsoft Windows | 7.0 | 0.0099 | | | [CVE-2020-0804](https://patchblox.com/security/data/cve/CVE-2020-0804.md) | High | Microsoft Windows | 7.8 | 0.0098 | | | [CVE-2020-0864](https://patchblox.com/security/data/cve/CVE-2020-0864.md) | High | Microsoft Windows | 7.8 | 0.0095 | | | [CVE-2020-0866](https://patchblox.com/security/data/cve/CVE-2020-0866.md) | High | Microsoft Windows | 7.8 | 0.0095 | | | [CVE-2020-0897](https://patchblox.com/security/data/cve/CVE-2020-0897.md) | High | Microsoft Windows | 7.8 | 0.0095 | | | [CVE-2020-0777](https://patchblox.com/security/data/cve/CVE-2020-0777.md) | High | Microsoft Windows | 7.0 | 0.0095 | | | [CVE-2020-0778](https://patchblox.com/security/data/cve/CVE-2020-0778.md) | High | Microsoft Windows | 7.0 | 0.0095 | | | [CVE-2020-0769](https://patchblox.com/security/data/cve/CVE-2020-0769.md) | High | Microsoft Windows | 7.8 | 0.0095 | | | [CVE-2020-0776](https://patchblox.com/security/data/cve/CVE-2020-0776.md) | High | Microsoft Windows | 7.8 | 0.0095 | | | [CVE-2020-0860](https://patchblox.com/security/data/cve/CVE-2020-0860.md) | High | Microsoft Windows | 7.8 | 0.0094 | | | [CVE-2020-0781](https://patchblox.com/security/data/cve/CVE-2020-0781.md) | High | Microsoft Windows | 7.0 | 0.0092 | | | [CVE-2020-0783](https://patchblox.com/security/data/cve/CVE-2020-0783.md) | High | Microsoft Windows | 7.0 | 0.0092 | | | [CVE-2020-0845](https://patchblox.com/security/data/cve/CVE-2020-0845.md) | High | Microsoft Windows | 7.8 | 0.0091 | | | [CVE-2020-0858](https://patchblox.com/security/data/cve/CVE-2020-0858.md) | High | Microsoft Windows | 7.8 | 0.0091 | | | [CVE-2020-0819](https://patchblox.com/security/data/cve/CVE-2020-0819.md) | High | Microsoft Windows | 7.8 | 0.0088 | | | [CVE-2020-0834](https://patchblox.com/security/data/cve/CVE-2020-0834.md) | High | Windows Kernel | 7.8 | 0.0088 | | | [CVE-2020-0840](https://patchblox.com/security/data/cve/CVE-2020-0840.md) | High | Microsoft Windows | 7.8 | 0.0088 | | | [CVE-2020-0841](https://patchblox.com/security/data/cve/CVE-2020-0841.md) | High | Microsoft Windows | 7.8 | 0.0088 | | | [CVE-2020-0849](https://patchblox.com/security/data/cve/CVE-2020-0849.md) | High | Microsoft Windows | 7.8 | 0.0088 | | | [CVE-2020-0799](https://patchblox.com/security/data/cve/CVE-2020-0799.md) | High | Windows Kernel | 7.8 | 0.0085 | | | [CVE-2020-0770](https://patchblox.com/security/data/cve/CVE-2020-0770.md) | High | Windows Installer | 7.8 | 0.0085 | | | [CVE-2020-0771](https://patchblox.com/security/data/cve/CVE-2020-0771.md) | High | Microsoft Windows | 7.8 | 0.0085 | | | [CVE-2020-0773](https://patchblox.com/security/data/cve/CVE-2020-0773.md) | High | Windows Installer | 7.8 | 0.0085 | | | [CVE-2020-0780](https://patchblox.com/security/data/cve/CVE-2020-0780.md) | High | Microsoft Windows | 7.0 | 0.0081 | | | [CVE-2020-0793](https://patchblox.com/security/data/cve/CVE-2020-0793.md) | High | Microsoft Windows | 7.8 | 0.0079 | | | [CVE-2020-0772](https://patchblox.com/security/data/cve/CVE-2020-0772.md) | High | Microsoft Windows | 7.8 | 0.0079 | | | [CVE-2020-0806](https://patchblox.com/security/data/cve/CVE-2020-0806.md) | High | Microsoft Windows | 7.8 | 0.0078 | | | [CVE-2020-0808](https://patchblox.com/security/data/cve/CVE-2020-0808.md) | High | Microsoft Windows | 7.8 | 0.0076 | | | [CVE-2020-0844](https://patchblox.com/security/data/cve/CVE-2020-0844.md) | High | Microsoft Windows | 7.8 | 0.0076 | | | [CVE-2020-0857](https://patchblox.com/security/data/cve/CVE-2020-0857.md) | High | Microsoft Windows | 7.8 | 0.0076 | | | [CVE-2020-0867](https://patchblox.com/security/data/cve/CVE-2020-0867.md) | High | Windows Installer | 7.8 | 0.0076 | | | [CVE-2020-0868](https://patchblox.com/security/data/cve/CVE-2020-0868.md) | High | Windows Installer | 7.8 | 0.0076 | | | [CVE-2020-0854](https://patchblox.com/security/data/cve/CVE-2020-0854.md) | High | Windows Diagnostic Hub | 7.1 | 0.0075 | | | [CVE-2020-0822](https://patchblox.com/security/data/cve/CVE-2020-0822.md) | High | Windows Installer | 7.8 | 0.0073 | | | [CVE-2020-0896](https://patchblox.com/security/data/cve/CVE-2020-0896.md) | High | Microsoft Windows | 7.8 | 0.0073 | | | [CVE-2020-0785](https://patchblox.com/security/data/cve/CVE-2020-0785.md) | High | Microsoft Windows | 7.0 | 0.0072 | | | [CVE-2020-0853](https://patchblox.com/security/data/cve/CVE-2020-0853.md) | Routine | Microsoft Graphics Component | 4.3 | 0.0658 | | | [CVE-2020-0880](https://patchblox.com/security/data/cve/CVE-2020-0880.md) | Routine | Microsoft Graphics Component | 5.5 | 0.0629 | | | [CVE-2020-0882](https://patchblox.com/security/data/cve/CVE-2020-0882.md) | Routine | Microsoft Graphics Component | 5.5 | 0.0629 | | | [CVE-2020-0774](https://patchblox.com/security/data/cve/CVE-2020-0774.md) | Routine | Microsoft Graphics Component | 5.5 | 0.0585 | | | [CVE-2020-0813](https://patchblox.com/security/data/cve/CVE-2020-0813.md) | Routine | Microsoft Scripting Engine | 4.3 | 0.0546 | | | [CVE-2020-0885](https://patchblox.com/security/data/cve/CVE-2020-0885.md) | Routine | Microsoft Graphics Component | 4.3 | 0.0456 | | | [CVE-2020-0879](https://patchblox.com/security/data/cve/CVE-2020-0879.md) | Routine | Microsoft Windows | 4.7 | 0.0172 | | | [CVE-2020-0863](https://patchblox.com/security/data/cve/CVE-2020-0863.md) | Routine | Microsoft Windows | 5.5 | 0.0153 | | | [CVE-2020-0871](https://patchblox.com/security/data/cve/CVE-2020-0871.md) | Routine | Microsoft Windows | 5.5 | 0.0143 | | | [CVE-2020-0874](https://patchblox.com/security/data/cve/CVE-2020-0874.md) | Routine | Microsoft Windows | 4.7 | 0.0139 | | | [CVE-2020-0775](https://patchblox.com/security/data/cve/CVE-2020-0775.md) | Routine | Microsoft Windows | 5.5 | 0.0131 | | | [CVE-2020-0859](https://patchblox.com/security/data/cve/CVE-2020-0859.md) | Routine | Windows Installer | 5.5 | 0.0131 | | | [CVE-2020-0820](https://patchblox.com/security/data/cve/CVE-2020-0820.md) | Routine | Microsoft Windows | 5.5 | 0.0128 | | | [CVE-2020-0861](https://patchblox.com/security/data/cve/CVE-2020-0861.md) | Routine | Microsoft Windows | 5.5 | 0.0103 | | --- Data as of 2026-11-07T06:34:28Z 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