# KB4015550: April 2017 security update KB4015550, released April 11, 2017, fixes 27 CVEs across 9 products. 2 of them are being exploited (CVE-2017-0210); 2 on CISA KEV. Patch Radar priority: Patch now. - Web page: https://patchblox.com/security/fix/microsoft/kb4015550 - Platform: Microsoft - Released: Apr 11, 2017 - Priority: Patch now (Closes CVE-2017-0210, exploited (CISA KEV)) - CVEs: 27, exploited: 2, on CISA KEV: 2 - Vendor advisory: https://support.microsoft.com/help/4015550 ## Applies to | Product | Release | Fixed in | |---|---|---| | [Internet Explorer 11 on Windows 8.1 for 32-bit systems](https://patchblox.com/security/data/product/microsoft/internet-explorer-11-on-windows-8.1-for-32-bit-systems.md) | | | | [Internet Explorer 11 on Windows 8.1 for x64-based systems](https://patchblox.com/security/data/product/microsoft/internet-explorer-11-on-windows-8.1-for-x64-based-systems.md) | | | | [Internet Explorer 11 on Windows RT 8.1](https://patchblox.com/security/data/product/microsoft/internet-explorer-11-on-windows-rt-8.1.md) | | | | [Internet Explorer 11 on Windows Server 2012 R2](https://patchblox.com/security/data/product/microsoft/internet-explorer-11-on-windows-server-2012-r2.md) | | | | [Windows 8.1 for 32-bit systems](https://patchblox.com/security/data/product/microsoft/windows-8.1-for-32-bit-systems.md) | | | | [Windows 8.1 for x64-based systems](https://patchblox.com/security/data/product/microsoft/windows-8.1-for-x64-based-systems.md) | | | | [Windows RT 8.1](https://patchblox.com/security/data/product/microsoft/windows-rt-8.1.md) | | | | [Windows Server 2012 R2](https://patchblox.com/security/data/product/microsoft/windows-server-2012-r2.md) | | | | [Windows Server 2012 R2 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/windows-server-2012-r2-server-core-installation.md) | | | ## CVEs this fix closes | CVE | Priority | Component | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2017-0210](https://patchblox.com/security/data/cve/CVE-2017-0210.md) | Patch now | Internet Explorer | 3.5 | 0.2233 | CISA KEV, Disclosed | | [CVE-2016-0162](https://patchblox.com/security/data/cve/CVE-2016-0162.md) | Patch now | Internet Explorer | n/a | 0.2193 | CISA KEV | | [CVE-2017-0202](https://patchblox.com/security/data/cve/CVE-2017-0202.md) | Urgent | Internet Explorer | 6.0 | 0.4565 | More likely | | [CVE-2017-0211](https://patchblox.com/security/data/cve/CVE-2017-0211.md) | Urgent | Microsoft Windows | 5.0 | 0.1409 | More likely | | [CVE-2017-0158](https://patchblox.com/security/data/cve/CVE-2017-0158.md) | Urgent | Microsoft Scripting Engine | 7.5 | 0.1279 | More likely | | [CVE-2017-0180](https://patchblox.com/security/data/cve/CVE-2017-0180.md) | Urgent | Windows Hyper-V | 7.6 | 0.0330 | | | [CVE-2017-0162](https://patchblox.com/security/data/cve/CVE-2017-0162.md) | Urgent | Windows Hyper-V | 7.6 | 0.0315 | | | [CVE-2017-0163](https://patchblox.com/security/data/cve/CVE-2017-0163.md) | Urgent | Windows Hyper-V | 7.6 | 0.0315 | | | [CVE-2017-0166](https://patchblox.com/security/data/cve/CVE-2017-0166.md) | High | Group Policy | 8.1 | 0.0642 | | | [CVE-2017-0168](https://patchblox.com/security/data/cve/CVE-2017-0168.md) | High | Windows Hyper-V | 7.7 | 0.0556 | | | [CVE-2017-0167](https://patchblox.com/security/data/cve/CVE-2017-0167.md) | High | Windows Kernel-Mode Drivers | 7.3 | 0.0554 | Disclosed | | [CVE-2017-0169](https://patchblox.com/security/data/cve/CVE-2017-0169.md) | High | Windows Hyper-V | 7.3 | 0.0156 | | | [CVE-2017-0156](https://patchblox.com/security/data/cve/CVE-2017-0156.md) | High | Microsoft Graphics Component | 7.0 | 0.0114 | | | [CVE-2013-6629](https://patchblox.com/security/data/cve/CVE-2013-6629.md) | Routine | Microsoft Graphics Component | 4.7 | 0.0973 | | | [CVE-2017-0192](https://patchblox.com/security/data/cve/CVE-2017-0192.md) | Routine | Microsoft Graphics Component | 4.4 | 0.0603 | | | [CVE-2017-0185](https://patchblox.com/security/data/cve/CVE-2017-0185.md) | Routine | Windows Hyper-V | 5.8 | 0.0567 | | | [CVE-2017-0191](https://patchblox.com/security/data/cve/CVE-2017-0191.md) | Routine | Microsoft Windows | 5.8 | 0.0473 | | | [CVE-2017-0186](https://patchblox.com/security/data/cve/CVE-2017-0186.md) | Routine | Windows Hyper-V | 5.8 | 0.0456 | | | [CVE-2017-0182](https://patchblox.com/security/data/cve/CVE-2017-0182.md) | Routine | Windows Hyper-V | 5.8 | 0.0441 | | | [CVE-2017-0183](https://patchblox.com/security/data/cve/CVE-2017-0183.md) | Routine | Windows Hyper-V | 5.8 | 0.0441 | | | [CVE-2017-0179](https://patchblox.com/security/data/cve/CVE-2017-0179.md) | Routine | Windows Hyper-V | 5.8 | 0.0429 | | | [CVE-2017-0058](https://patchblox.com/security/data/cve/CVE-2017-0058.md) | Routine | Windows Kernel-Mode Drivers | 4.7 | 0.0366 | | | [CVE-2017-0159](https://patchblox.com/security/data/cve/CVE-2017-0159.md) | Routine | Windows Hyper-V | 3.7 | 0.0365 | | | [CVE-2017-0165](https://patchblox.com/security/data/cve/CVE-2017-0165.md) | Routine | Microsoft Windows | 6.6 | 0.0334 | | | [CVE-2017-0188](https://patchblox.com/security/data/cve/CVE-2017-0188.md) | Routine | Windows Kernel-Mode Drivers | 4.4 | 0.0298 | | | [CVE-2017-0184](https://patchblox.com/security/data/cve/CVE-2017-0184.md) | Routine | Windows Hyper-V | 5.4 | 0.0168 | | | [CVE-2017-0178](https://patchblox.com/security/data/cve/CVE-2017-0178.md) | Routine | Windows Hyper-V | 5.4 | 0.0163 | | --- Data as of 2026-11-07T12:40:37Z UTC. 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