# KB3197873: November 2016 security update KB3197873, released November 8, 2016, fixes 34 CVEs across 7 products. 2 of them are being exploited (CVE-2016-7255); 2 on CISA KEV. Patch Radar priority: Patch now. - Web page: https://patchblox.com/security/fix/microsoft/kb3197873 - Platform: Microsoft - Released: Nov 8, 2016 - Priority: Patch now (Closes CVE-2016-7255, exploited (CISA KEV, ransomware)) - CVEs: 34, exploited: 2, on CISA KEV: 2 - Vendor advisory: https://support.microsoft.com/help/3197873 ## 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 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 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-2016-7255](https://patchblox.com/security/data/cve/CVE-2016-7255.md) | Patch now | Windows Kernel-Mode Drivers | 6.1 | 0.8097 | CISA KEV, Ransomware | | [CVE-2016-7256](https://patchblox.com/security/data/cve/CVE-2016-7256.md) | Patch now | Microsoft Graphics Component | 8.8 | 0.6459 | CISA KEV | | [CVE-2016-7241](https://patchblox.com/security/data/cve/CVE-2016-7241.md) | Urgent | Microsoft Browsers | 4.2 | 0.7253 | More likely | | [CVE-2016-7212](https://patchblox.com/security/data/cve/CVE-2016-7212.md) | Urgent | Microsoft Windows | 8.8 | 0.6983 | | | [CVE-2016-7248](https://patchblox.com/security/data/cve/CVE-2016-7248.md) | Urgent | Microsoft Video Control | n/a | 0.2201 | | | [CVE-2016-7205](https://patchblox.com/security/data/cve/CVE-2016-7205.md) | Urgent | Microsoft Graphics Component | 7.1 | 0.2155 | More likely | | [CVE-2016-7217](https://patchblox.com/security/data/cve/CVE-2016-7217.md) | Urgent | Microsoft Graphics Component | 4.2 | 0.2155 | More likely | | [CVE-2016-7195](https://patchblox.com/security/data/cve/CVE-2016-7195.md) | Urgent | Microsoft Browsers | 6.0 | 0.1710 | More likely | | [CVE-2016-7196](https://patchblox.com/security/data/cve/CVE-2016-7196.md) | Urgent | Microsoft Browsers | 6.0 | 0.1451 | More likely | | [CVE-2016-7198](https://patchblox.com/security/data/cve/CVE-2016-7198.md) | Urgent | Microsoft Browsers | 4.2 | 0.1451 | More likely | | [CVE-2016-7227](https://patchblox.com/security/data/cve/CVE-2016-7227.md) | Urgent | Microsoft Browsers | 6.4 | 0.1171 | More likely | | [CVE-2016-7247](https://patchblox.com/security/data/cve/CVE-2016-7247.md) | Urgent | Boot Manager | 6.2 | 0.0603 | More likely | | [CVE-2016-7215](https://patchblox.com/security/data/cve/CVE-2016-7215.md) | Urgent | Windows Kernel-Mode Drivers | 7.8 | 0.0302 | More likely | | [CVE-2016-7246](https://patchblox.com/security/data/cve/CVE-2016-7246.md) | Urgent | Windows Kernel-Mode Drivers | 7.8 | 0.0302 | More likely | | [CVE-2016-7221](https://patchblox.com/security/data/cve/CVE-2016-7221.md) | Urgent | Microsoft Windows | 6.5 | 0.0218 | More likely | | [CVE-2016-3342](https://patchblox.com/security/data/cve/CVE-2016-3342.md) | High | Common Log File System Driver | 7.8 | 0.1263 | | | [CVE-2016-3343](https://patchblox.com/security/data/cve/CVE-2016-3343.md) | High | Common Log File System Driver | 7.8 | 0.1263 | | | [CVE-2016-3340](https://patchblox.com/security/data/cve/CVE-2016-3340.md) | High | Common Log File System Driver | n/a | 0.1263 | | | [CVE-2016-3332](https://patchblox.com/security/data/cve/CVE-2016-3332.md) | High | Common Log File System Driver | 7.8 | 0.0662 | | | [CVE-2016-3333](https://patchblox.com/security/data/cve/CVE-2016-3333.md) | High | Common Log File System Driver | 7.8 | 0.0662 | | | [CVE-2016-3334](https://patchblox.com/security/data/cve/CVE-2016-3334.md) | High | Common Log File System Driver | 7.8 | 0.0662 | | | [CVE-2016-3335](https://patchblox.com/security/data/cve/CVE-2016-3335.md) | High | Common Log File System Driver | 7.8 | 0.0662 | | | [CVE-2016-3338](https://patchblox.com/security/data/cve/CVE-2016-3338.md) | High | Common Log File System Driver | 7.8 | 0.0662 | | | [CVE-2016-7237](https://patchblox.com/security/data/cve/CVE-2016-7237.md) | Routine | Windows Authentication Methods | 6.5 | 0.6746 | | | [CVE-2016-7210](https://patchblox.com/security/data/cve/CVE-2016-7210.md) | Routine | Microsoft Graphics Component | 4.4 | 0.2112 | | | [CVE-2016-7199](https://patchblox.com/security/data/cve/CVE-2016-7199.md) | Routine | Microsoft Browsers | 4.3 | 0.1320 | Disclosed | | [CVE-2016-7239](https://patchblox.com/security/data/cve/CVE-2016-7239.md) | Routine | Microsoft Browsers | n/a | 0.1171 | | | [CVE-2016-0026](https://patchblox.com/security/data/cve/CVE-2016-0026.md) | Routine | Common Log File System Driver | 6.5 | 0.0662 | | | [CVE-2016-7184](https://patchblox.com/security/data/cve/CVE-2016-7184.md) | Routine | Common Log File System Driver | 6.5 | 0.0662 | | | [CVE-2016-7224](https://patchblox.com/security/data/cve/CVE-2016-7224.md) | Routine | Microsoft Virtual Hard Drive | 6.8 | 0.0411 | | | [CVE-2016-7214](https://patchblox.com/security/data/cve/CVE-2016-7214.md) | Routine | Windows Kernel-Mode Drivers | 4.4 | 0.0378 | | | [CVE-2016-7218](https://patchblox.com/security/data/cve/CVE-2016-7218.md) | Routine | Windows Kernel-Mode Drivers | 5.8 | 0.0346 | | | [CVE-2016-7238](https://patchblox.com/security/data/cve/CVE-2016-7238.md) | Routine | Windows Authentication Methods | 6.6 | 0.0143 | | | [CVE-2016-7223](https://patchblox.com/security/data/cve/CVE-2016-7223.md) | Routine | Microsoft Virtual Hard Drive | 6.8 | 0.0140 | | --- 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