# CVE-2016-7223: VHD Driver Elevation of Privilege Vulnerability

CVE-2016-7223 is fixed in 15 products on 1 platform, first by KB3198586, released November 8, 2016. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2016-7223
- Priority: Routine
- CVSS: 6.8 (Important)
- EPSS: 0.0140
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Nov 8, 2016
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2016-7223

## Description

<p>An elevation of privilege vulnerability exists when the Windows Virtual Hard Disk Drive fails to properly handle user access to certain files. An attacker who successfully exploited the vulnerability could manipulate files in locations not intended to be available to the user.</p> <p>To exploit the vulnerability, an attacker would need access to the local system and the ability to execute a specially crafted application on the system.</p> <p>The security update addresses the vulnerability by correcting how the kernel API restricts access to these files.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows 10 Version 1511 for 32-bit Systems |  | [KB3198586](https://patchblox.com/security/data/fix/microsoft/kb3198586.md) | Nov 8, 2016 |
| Microsoft | Windows 10 Version 1511 for x64-based Systems |  | [KB3198586](https://patchblox.com/security/data/fix/microsoft/kb3198586.md) | Nov 8, 2016 |
| Microsoft | Windows 10 Version 1607 for 32-bit Systems |  | [KB3200970](https://patchblox.com/security/data/fix/microsoft/kb3200970.md) | Nov 8, 2016 |
| Microsoft | Windows 10 Version 1607 for x64-based Systems |  | [KB3200970](https://patchblox.com/security/data/fix/microsoft/kb3200970.md) | Nov 8, 2016 |
| Microsoft | Windows 10 for 32-bit Systems | 10240.17190 | [KB3198585](https://patchblox.com/security/data/fix/microsoft/kb3198585.md) | Nov 8, 2016 |
| Microsoft | Windows 10 for x64-based Systems | 10240.17190 | [KB3198585](https://patchblox.com/security/data/fix/microsoft/kb3198585.md) | Nov 8, 2016 |
| Microsoft | Windows 8.1 for 32-bit systems |  | [KB3197873](https://patchblox.com/security/data/fix/microsoft/kb3197873.md) | Nov 8, 2016 |
| Microsoft | Windows 8.1 for 32-bit systems |  | [KB3197874](https://patchblox.com/security/data/fix/microsoft/kb3197874.md) | Nov 8, 2016 |
| Microsoft | Windows 8.1 for x64-based systems |  | [KB3197873](https://patchblox.com/security/data/fix/microsoft/kb3197873.md) | Nov 8, 2016 |
| Microsoft | Windows 8.1 for x64-based systems |  | [KB3197874](https://patchblox.com/security/data/fix/microsoft/kb3197874.md) | Nov 8, 2016 |
| Microsoft | Windows RT 8.1 |  | [KB3197874](https://patchblox.com/security/data/fix/microsoft/kb3197874.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2012 |  | [KB3197877](https://patchblox.com/security/data/fix/microsoft/kb3197877.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2012 |  | [KB3197876](https://patchblox.com/security/data/fix/microsoft/kb3197876.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2012 (Server Core installation) |  | [KB3197877](https://patchblox.com/security/data/fix/microsoft/kb3197877.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2012 (Server Core installation) |  | [KB3197876](https://patchblox.com/security/data/fix/microsoft/kb3197876.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2012 R2 |  | [KB3197873](https://patchblox.com/security/data/fix/microsoft/kb3197873.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2012 R2 |  | [KB3197874](https://patchblox.com/security/data/fix/microsoft/kb3197874.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |  | [KB3197873](https://patchblox.com/security/data/fix/microsoft/kb3197873.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |  | [KB3197874](https://patchblox.com/security/data/fix/microsoft/kb3197874.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2016 |  | [KB3200970](https://patchblox.com/security/data/fix/microsoft/kb3200970.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2016 (Server Core installation) |  | [KB3200970](https://patchblox.com/security/data/fix/microsoft/kb3200970.md) | Nov 8, 2016 |

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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