# KB4601318: February 2021 cumulative update for Windows 10 1607 KB4601318, released February 9, 2021, fixes 23 CVEs across 8 products. One of them is being exploited (CVE-2020-1472); 1 on CISA KEV. Patch Radar priority: Patch now. - Web page: https://patchblox.com/security/fix/microsoft/kb4601318 - Platform: Microsoft - Released: Feb 9, 2021 - Priority: Patch now (Closes CVE-2020-1472, exploited (CISA KEV, ransomware)) - CVEs: 23, exploited: 1, on CISA KEV: 1 - Vendor advisory: https://support.microsoft.com/help/4601318 ## Applies to | Product | Release | Fixed in | |---|---|---| | [Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-4.6.2-4.7-4.7.1-4.7.2-on-windows-10-version-1607-for-32-bit-systems-11863-10852.md) | | 14393.4225 | | [Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-4.6.2-4.7-4.7.1-4.7.2-on-windows-10-version-1607-for-x64-based-systems-11863-10853.md) | | 14393.4225 | | [Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-4.6.2-4.7-4.7.1-4.7.2-on-windows-server-2016-11863-10816.md) | | 14393.4225 | | [Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-4.6.2-4.7-4.7.1-4.7.2-on-windows-server-2016-server-core-installation-11863-10855.md) | | 14393.4225 | | [Windows 10 Version 1607 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1607-for-32-bit-systems.md) | | 14393.4225 | | [Windows 10 Version 1607 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-version-1607-for-x64-based-systems.md) | | 14393.4225 | | [Windows Server 2016](https://patchblox.com/security/data/product/microsoft/windows-server-2016.md) | | 14393.4225 | | [Windows Server 2016 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/windows-server-2016-server-core-installation.md) | | 14393.4225 | ## CVEs this fix closes | CVE | Priority | Component | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2020-1472](https://patchblox.com/security/data/cve/CVE-2020-1472.md) | Patch now | Windows Netlogon | 10.0 | 0.9939 | CISA KEV, Ransomware | | [CVE-2021-24086](https://patchblox.com/security/data/cve/CVE-2021-24086.md) | Urgent | Windows TCP/IP | 7.5 | 0.5896 | More likely | | [CVE-2021-24093](https://patchblox.com/security/data/cve/CVE-2021-24093.md) | Urgent | Microsoft Graphics Component | 8.8 | 0.4590 | | | [CVE-2021-24074](https://patchblox.com/security/data/cve/CVE-2021-24074.md) | Urgent | Windows TCP/IP | 9.8 | 0.2616 | More likely | | [CVE-2021-24094](https://patchblox.com/security/data/cve/CVE-2021-24094.md) | Urgent | Windows TCP/IP | 9.8 | 0.2214 | More likely | | [CVE-2021-24078](https://patchblox.com/security/data/cve/CVE-2021-24078.md) | Urgent | Role: DNS Server | 9.8 | 0.1189 | More likely | | [CVE-2021-24091](https://patchblox.com/security/data/cve/CVE-2021-24091.md) | Urgent | Microsoft Windows Codecs Library | 7.8 | 0.0338 | | | [CVE-2021-24077](https://patchblox.com/security/data/cve/CVE-2021-24077.md) | Urgent | Role: Windows Fax Service | 9.8 | 0.0287 | | | [CVE-2021-24081](https://patchblox.com/security/data/cve/CVE-2021-24081.md) | Urgent | Microsoft Windows Codecs Library | 7.8 | 0.0251 | | | [CVE-2021-1722](https://patchblox.com/security/data/cve/CVE-2021-1722.md) | Urgent | Role: Windows Fax Service | 8.1 | 0.0244 | | | [CVE-2021-24088](https://patchblox.com/security/data/cve/CVE-2021-24088.md) | Urgent | Windows Print Spooler Components | 8.8 | 0.0243 | | | [CVE-2021-1727](https://patchblox.com/security/data/cve/CVE-2021-1727.md) | Urgent | Windows Installer | 7.8 | 0.0076 | Disclosed | | [CVE-2021-24111](https://patchblox.com/security/data/cve/CVE-2021-24111.md) | High | .NET Framework | 7.5 | 0.0384 | | | [CVE-2021-1734](https://patchblox.com/security/data/cve/CVE-2021-1734.md) | High | Windows Remote Procedure Call | 7.5 | 0.0381 | | | [CVE-2021-24083](https://patchblox.com/security/data/cve/CVE-2021-24083.md) | High | Windows Address Book | 7.8 | 0.0287 | | | [CVE-2021-24096](https://patchblox.com/security/data/cve/CVE-2021-24096.md) | High | Windows Kernel | 7.8 | 0.0146 | | | [CVE-2021-24103](https://patchblox.com/security/data/cve/CVE-2021-24103.md) | High | Windows Event Tracing | 7.8 | 0.0063 | | | [CVE-2021-25195](https://patchblox.com/security/data/cve/CVE-2021-25195.md) | High | Windows PKU2U | 7.8 | 0.0063 | | | [CVE-2021-24102](https://patchblox.com/security/data/cve/CVE-2021-24102.md) | High | Windows Event Tracing | 7.8 | 0.0055 | | | [CVE-2021-24080](https://patchblox.com/security/data/cve/CVE-2021-24080.md) | Routine | Windows Trust Verification API | 6.5 | 0.0305 | | | [CVE-2021-24082](https://patchblox.com/security/data/cve/CVE-2021-24082.md) | Routine | Windows PowerShell | 4.3 | 0.0263 | | | [CVE-2021-24076](https://patchblox.com/security/data/cve/CVE-2021-24076.md) | Routine | Role: Windows Hyper-V | 5.5 | 0.0095 | | | [CVE-2021-24079](https://patchblox.com/security/data/cve/CVE-2021-24079.md) | Routine | Windows Backup Engine | 5.5 | 0.0095 | | --- Data as of 2026-11-07T12:40:37Z 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 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.