# KB4598229: January 2021 cumulative update for Windows 10 1909 KB4598229, released January 12, 2021, fixes 60 CVEs across 7 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/kb4598229 - Platform: Microsoft - Released: Jan 12, 2021 - Priority: Urgent (Closes CVE-2021-1665, rated Critical) - CVEs: 60, exploited: 0, on CISA KEV: 0 - Vendor advisory: https://support.microsoft.com/help/4598229 ## Applies to | Product | Release | Fixed in | |---|---|---| | [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) | | 18363.1316 | | [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) | | 18363.1316 | | [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) | | 18363.1316 | | [Windows 10 Version 1909 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1909-for-32-bit-systems.md) | | 18363.1316 | | [Windows 10 Version 1909 for ARM64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1909-for-arm64-based-systems.md) | | 18363.1316 | | [Windows 10 Version 1909 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1909-for-x64-based-systems.md) | | 18363.1316 | | [Windows Server, version 1909 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/windows-server-version-1909-server-core-installation.md) | | 18363.1316 | ## CVEs this fix closes | CVE | Priority | Component | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2021-1665](https://patchblox.com/security/data/cve/CVE-2021-1665.md) | Urgent | Microsoft Graphics Component | 7.8 | 0.0406 | | | [CVE-2021-1668](https://patchblox.com/security/data/cve/CVE-2021-1668.md) | Urgent | Microsoft DTV-DVD Video Decoder | 7.8 | 0.0392 | | | [CVE-2021-1667](https://patchblox.com/security/data/cve/CVE-2021-1667.md) | Urgent | Windows Remote Procedure Call Runtime | 8.8 | 0.0387 | | | [CVE-2021-1658](https://patchblox.com/security/data/cve/CVE-2021-1658.md) | Urgent | Windows Remote Procedure Call Runtime | 8.8 | 0.0320 | | | [CVE-2021-1660](https://patchblox.com/security/data/cve/CVE-2021-1660.md) | Urgent | Windows Remote Procedure Call Runtime | 8.8 | 0.0320 | | | [CVE-2021-1666](https://patchblox.com/security/data/cve/CVE-2021-1666.md) | Urgent | Windows Remote Procedure Call Runtime | 8.8 | 0.0320 | | | [CVE-2021-1673](https://patchblox.com/security/data/cve/CVE-2021-1673.md) | Urgent | Windows Remote Procedure Call Runtime | 8.8 | 0.0320 | | | [CVE-2021-1705](https://patchblox.com/security/data/cve/CVE-2021-1705.md) | Urgent | Microsoft Edge (HTML-based) | 4.2 | 0.0207 | | | [CVE-2021-1709](https://patchblox.com/security/data/cve/CVE-2021-1709.md) | Urgent | Microsoft Graphics Component | 7.0 | 0.0079 | More likely | | [CVE-2021-1678](https://patchblox.com/security/data/cve/CVE-2021-1678.md) | High | Windows NTLM | 8.8 | 0.1003 | | | [CVE-2021-1691](https://patchblox.com/security/data/cve/CVE-2021-1691.md) | High | Windows Hyper-V | 7.7 | 0.0407 | | | [CVE-2021-1700](https://patchblox.com/security/data/cve/CVE-2021-1700.md) | High | Windows Remote Procedure Call Runtime | 8.8 | 0.0387 | | | [CVE-2021-1701](https://patchblox.com/security/data/cve/CVE-2021-1701.md) | High | Windows Remote Procedure Call Runtime | 8.8 | 0.0387 | | | [CVE-2021-1694](https://patchblox.com/security/data/cve/CVE-2021-1694.md) | High | Windows Update Stack | 7.5 | 0.0351 | | | [CVE-2021-1710](https://patchblox.com/security/data/cve/CVE-2021-1710.md) | High | Windows Media | 7.8 | 0.0322 | | | [CVE-2021-1664](https://patchblox.com/security/data/cve/CVE-2021-1664.md) | High | Windows Remote Procedure Call Runtime | 8.8 | 0.0320 | | | [CVE-2021-1669](https://patchblox.com/security/data/cve/CVE-2021-1669.md) | High | Windows Remote Desktop | 8.8 | 0.0320 | | | [CVE-2021-1671](https://patchblox.com/security/data/cve/CVE-2021-1671.md) | High | Windows Remote Procedure Call Runtime | 8.8 | 0.0320 | | | [CVE-2021-1674](https://patchblox.com/security/data/cve/CVE-2021-1674.md) | High | Windows Remote Desktop | 8.8 | 0.0320 | | | [CVE-2021-1706](https://patchblox.com/security/data/cve/CVE-2021-1706.md) | High | Microsoft Windows | 7.3 | 0.0225 | | | [CVE-2021-1648](https://patchblox.com/security/data/cve/CVE-2021-1648.md) | High | Windows splwow64 | 7.8 | 0.0125 | Disclosed | | [CVE-2021-1638](https://patchblox.com/security/data/cve/CVE-2021-1638.md) | High | Microsoft Bluetooth Driver | 7.7 | 0.0123 | | | [CVE-2021-1704](https://patchblox.com/security/data/cve/CVE-2021-1704.md) | High | Windows Hyper-V | 7.3 | 0.0103 | | | [CVE-2021-1657](https://patchblox.com/security/data/cve/CVE-2021-1657.md) | High | Microsoft Windows | 7.8 | 0.0095 | | | [CVE-2021-1685](https://patchblox.com/security/data/cve/CVE-2021-1685.md) | High | Windows AppX Deployment Extensions | 7.3 | 0.0094 | | | [CVE-2021-1695](https://patchblox.com/security/data/cve/CVE-2021-1695.md) | High | Windows Print Spooler Components | 7.8 | 0.0087 | | | [CVE-2021-1661](https://patchblox.com/security/data/cve/CVE-2021-1661.md) | High | Windows Installer | 7.8 | 0.0083 | | | [CVE-2021-1651](https://patchblox.com/security/data/cve/CVE-2021-1651.md) | High | Windows Diagnostic Hub | 7.8 | 0.0082 | | | [CVE-2021-1697](https://patchblox.com/security/data/cve/CVE-2021-1697.md) | High | Windows Installer | 7.8 | 0.0082 | | | [CVE-2021-1650](https://patchblox.com/security/data/cve/CVE-2021-1650.md) | High | Microsoft Windows | 7.8 | 0.0081 | | | [CVE-2021-1649](https://patchblox.com/security/data/cve/CVE-2021-1649.md) | High | Microsoft Windows | 7.8 | 0.0079 | | | [CVE-2021-1652](https://patchblox.com/security/data/cve/CVE-2021-1652.md) | High | Windows CSC Service | 7.8 | 0.0079 | | | [CVE-2021-1653](https://patchblox.com/security/data/cve/CVE-2021-1653.md) | High | Windows CSC Service | 7.8 | 0.0079 | | | [CVE-2021-1654](https://patchblox.com/security/data/cve/CVE-2021-1654.md) | High | Windows CSC Service | 7.8 | 0.0079 | | | [CVE-2021-1655](https://patchblox.com/security/data/cve/CVE-2021-1655.md) | High | Windows CSC Service | 7.8 | 0.0079 | | | [CVE-2021-1693](https://patchblox.com/security/data/cve/CVE-2021-1693.md) | High | Windows CSC Service | 7.8 | 0.0079 | | | [CVE-2021-1702](https://patchblox.com/security/data/cve/CVE-2021-1702.md) | High | Windows Remote Procedure Call | 7.8 | 0.0079 | | | [CVE-2021-1642](https://patchblox.com/security/data/cve/CVE-2021-1642.md) | High | Windows AppX Deployment Extensions | 7.8 | 0.0075 | | | [CVE-2021-1680](https://patchblox.com/security/data/cve/CVE-2021-1680.md) | High | Windows Diagnostic Hub | 7.8 | 0.0073 | | | [CVE-2021-1659](https://patchblox.com/security/data/cve/CVE-2021-1659.md) | High | Windows CSC Service | 7.8 | 0.0070 | | | [CVE-2021-1662](https://patchblox.com/security/data/cve/CVE-2021-1662.md) | High | Windows Event Tracing | 7.8 | 0.0070 | | | [CVE-2021-1681](https://patchblox.com/security/data/cve/CVE-2021-1681.md) | High | Windows WalletService | 7.8 | 0.0070 | | | [CVE-2021-1686](https://patchblox.com/security/data/cve/CVE-2021-1686.md) | High | Windows WalletService | 7.8 | 0.0070 | | | [CVE-2021-1687](https://patchblox.com/security/data/cve/CVE-2021-1687.md) | High | Windows WalletService | 7.8 | 0.0070 | | | [CVE-2021-1688](https://patchblox.com/security/data/cve/CVE-2021-1688.md) | High | Windows CSC Service | 7.8 | 0.0070 | | | [CVE-2021-1689](https://patchblox.com/security/data/cve/CVE-2021-1689.md) | High | Microsoft Windows | 7.8 | 0.0070 | | | [CVE-2021-1690](https://patchblox.com/security/data/cve/CVE-2021-1690.md) | High | Windows WalletService | 7.8 | 0.0070 | | | [CVE-2021-1682](https://patchblox.com/security/data/cve/CVE-2021-1682.md) | High | Windows Kernel | 7.0 | 0.0066 | | | [CVE-2021-1645](https://patchblox.com/security/data/cve/CVE-2021-1645.md) | Routine | Windows DP API | 5.0 | 0.0785 | | | [CVE-2021-1696](https://patchblox.com/security/data/cve/CVE-2021-1696.md) | Routine | Microsoft Graphics Component | 5.5 | 0.0470 | | | [CVE-2021-1679](https://patchblox.com/security/data/cve/CVE-2021-1679.md) | Routine | Windows CryptoAPI | 6.5 | 0.0374 | | | [CVE-2021-1708](https://patchblox.com/security/data/cve/CVE-2021-1708.md) | Routine | Microsoft Graphics Component | 5.7 | 0.0372 | | | [CVE-2021-1656](https://patchblox.com/security/data/cve/CVE-2021-1656.md) | Routine | Windows TPM Device Driver | 5.5 | 0.0301 | | | [CVE-2021-1699](https://patchblox.com/security/data/cve/CVE-2021-1699.md) | Routine | Microsoft Windows | 5.5 | 0.0214 | | | [CVE-2021-1683](https://patchblox.com/security/data/cve/CVE-2021-1683.md) | Routine | Microsoft Bluetooth Driver | 5.0 | 0.0168 | | | [CVE-2021-1684](https://patchblox.com/security/data/cve/CVE-2021-1684.md) | Routine | Microsoft Bluetooth Driver | 5.0 | 0.0163 | | | [CVE-2021-1676](https://patchblox.com/security/data/cve/CVE-2021-1676.md) | Routine | Microsoft Windows | 5.5 | 0.0132 | | | [CVE-2021-1672](https://patchblox.com/security/data/cve/CVE-2021-1672.md) | Routine | Windows Projected File System Filter Driver | 5.5 | 0.0128 | | | [CVE-2021-1637](https://patchblox.com/security/data/cve/CVE-2021-1637.md) | Routine | Microsoft Windows DNS | 5.5 | 0.0122 | | | [CVE-2021-1646](https://patchblox.com/security/data/cve/CVE-2021-1646.md) | Routine | Microsoft Windows | 6.6 | 0.0079 | | --- Data as of 2026-11-09T13:31:49Z 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.