# CVE-2016-7256: Microsoft Graphics Remote Code Execution Vulnerability

CVE-2016-7256 is fixed in 27 products on 1 platform, first by KB3198586, released November 8, 2016. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on May 25, 2022. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/cve/CVE-2016-7256
- Priority: Patch now
- CVSS: 8.8 (Critical)
- EPSS: 0.6459
- CISA KEV: listed May 25, 2022, federal due date Jun 15, 2022
- Exploited (vendor report): yes
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Nov 8, 2016
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2016-7256

## Description

<p>A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts. An attacker who successfully exploited the vulnerability could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.</p> <p>There are multiple ways an attacker could exploit the vulnerability:</p> <ul> <li>In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability and then convince users to view the website. An attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically by getting them to click a link in an email or instant message that takes users to the attacker's website, or by opening an attachment sent through email.</li> <li>In a file-sharing attack scenario, an attacker could provide a specially crafted document file designed to exploit the vulnerability and then convince users to open the document file.</li> </ul> <p>The security update addresses the vulnerability by correcting how the Windows font library handles embedded fonts.</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 7 for 32-bit Systems Service Pack 1 |  | [KB3197867](https://patchblox.com/security/data/fix/microsoft/kb3197867.md) | Nov 8, 2016 |
| Microsoft | Windows 7 for 32-bit Systems Service Pack 1 |  | [KB3197868](https://patchblox.com/security/data/fix/microsoft/kb3197868.md) | Nov 8, 2016 |
| Microsoft | Windows 7 for x64-based Systems Service Pack 1 |  | [KB3197867](https://patchblox.com/security/data/fix/microsoft/kb3197867.md) | Nov 8, 2016 |
| Microsoft | Windows 7 for x64-based Systems Service Pack 1 |  | [KB3197868](https://patchblox.com/security/data/fix/microsoft/kb3197868.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 2008 R2 for Itanium-Based Systems Service Pack 1 |  | [KB3197867](https://patchblox.com/security/data/fix/microsoft/kb3197867.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 |  | [KB3197868](https://patchblox.com/security/data/fix/microsoft/kb3197868.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB3197867](https://patchblox.com/security/data/fix/microsoft/kb3197867.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB3197868](https://patchblox.com/security/data/fix/microsoft/kb3197868.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) |  | [KB3197867](https://patchblox.com/security/data/fix/microsoft/kb3197867.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) |  | [KB3197868](https://patchblox.com/security/data/fix/microsoft/kb3197868.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 |  | [KB3203859](https://patchblox.com/security/data/fix/microsoft/kb3203859.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) |  | [KB3203859](https://patchblox.com/security/data/fix/microsoft/kb3203859.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 |  | [KB3203859](https://patchblox.com/security/data/fix/microsoft/kb3203859.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 |  | [KB3203859](https://patchblox.com/security/data/fix/microsoft/kb3203859.md) | Nov 8, 2016 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) |  | [KB3203859](https://patchblox.com/security/data/fix/microsoft/kb3203859.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 |
| Microsoft | Windows Vista Service Pack 2 |  | [KB3203859](https://patchblox.com/security/data/fix/microsoft/kb3203859.md) | Nov 8, 2016 |
| Microsoft | Windows Vista x64 Edition Service Pack 2 |  | [KB3203859](https://patchblox.com/security/data/fix/microsoft/kb3203859.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