# KB4530684: December 2019 cumulative update for Windows 10 1903 KB4530684, released December 10, 2019, fixes 18 CVEs across 17 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/kb4530684 - Platform: Microsoft - Released: Dec 10, 2019 - Priority: Urgent (Closes CVE-2018-0859, exploitation more likely) - CVEs: 18, exploited: 0, on CISA KEV: 0 - Vendor advisory: https://support.microsoft.com/help/4530684 ## 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) | | | | [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-2018-0859](https://patchblox.com/security/data/cve/CVE-2018-0859.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.1773 | More likely | | [CVE-2019-1468](https://patchblox.com/security/data/cve/CVE-2019-1468.md) | Urgent | Microsoft Graphics Component | 8.4 | 0.1768 | | | [CVE-2019-0860](https://patchblox.com/security/data/cve/CVE-2019-0860.md) | Urgent | Microsoft Scripting Engine | 4.2 | 0.1080 | More likely | | [CVE-2019-1485](https://patchblox.com/security/data/cve/CVE-2019-1485.md) | Urgent | Microsoft Scripting Engine | 6.4 | 0.0821 | More likely | | [CVE-2019-1471](https://patchblox.com/security/data/cve/CVE-2019-1471.md) | Urgent | Windows Hyper-V | 8.2 | 0.0803 | | | [CVE-2019-1469](https://patchblox.com/security/data/cve/CVE-2019-1469.md) | Urgent | Windows Kernel | 5.5 | 0.0165 | More likely | | [CVE-2019-1453](https://patchblox.com/security/data/cve/CVE-2019-1453.md) | High | Microsoft Windows | 7.5 | 0.0975 | | | [CVE-2019-1484](https://patchblox.com/security/data/cve/CVE-2019-1484.md) | High | Windows OLE | 7.8 | 0.0948 | | | [CVE-2019-1476](https://patchblox.com/security/data/cve/CVE-2019-1476.md) | High | Microsoft Windows | 7.8 | 0.0509 | | | [CVE-2019-1483](https://patchblox.com/security/data/cve/CVE-2019-1483.md) | High | Microsoft Windows | 7.8 | 0.0188 | | | [CVE-2019-1470](https://patchblox.com/security/data/cve/CVE-2019-1470.md) | Routine | Windows Hyper-V | 6.0 | 0.0667 | | | [CVE-2019-1465](https://patchblox.com/security/data/cve/CVE-2019-1465.md) | Routine | Microsoft Graphics Component | 5.5 | 0.0602 | | | [CVE-2019-1466](https://patchblox.com/security/data/cve/CVE-2019-1466.md) | Routine | Microsoft Graphics Component | 5.5 | 0.0602 | | | [CVE-2019-1467](https://patchblox.com/security/data/cve/CVE-2019-1467.md) | Routine | Microsoft Graphics Component | 5.5 | 0.0601 | | | [CVE-2019-0838](https://patchblox.com/security/data/cve/CVE-2019-0838.md) | Routine | Microsoft Windows | 6.6 | 0.0206 | | | [CVE-2019-1472](https://patchblox.com/security/data/cve/CVE-2019-1472.md) | Routine | Windows Kernel | 5.5 | 0.0156 | | | [CVE-2019-1474](https://patchblox.com/security/data/cve/CVE-2019-1474.md) | Routine | Microsoft Windows | 5.5 | 0.0156 | | | [CVE-2019-1488](https://patchblox.com/security/data/cve/CVE-2019-1488.md) | Routine | Microsoft Windows | 3.3 | 0.0086 | | --- Data as of 2026-11-07T12:40:37Z UTC. 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