# CVE-2016-7281: Microsoft Edge Security Feature Bypass Vulnerability

CVE-2016-7281 is fixed in 23 products on 1 platform, first by KB3205386, released December 13, 2016. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2016-7281
- Priority: Routine
- CVSS: 4.3 (Important)
- EPSS: 0.1331
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: yes
- Vendor exploitability assessment: Exploitation Unlikely
- Published: Dec 13, 2016
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2016-7281

## Description

<p>A security feature bypass vulnerability exists when Microsoft Edge improperly handles requests of different origins. The vulnerability allows Microsoft Edge to bypass Same-Origin Policy (SOP) restrictions, and to allow requests that should otherwise be ignored. An attacker who successfully exploited the vulnerability could force the browser to send data that would otherwise be restricted.</p> <p>In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites, and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability.</p> <p>The security update addresses the vulnerability by modifying how affected Microsoft Edge handles different-origin requests.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Internet Explorer 10 on Windows Server 2012 |  | [KB3205409](https://patchblox.com/security/data/fix/microsoft/kb3205409.md) | Dec 13, 2016 |
| Microsoft | Internet Explorer 10 on Windows Server 2012 |  | [KB3205408](https://patchblox.com/security/data/fix/microsoft/kb3205408.md) | Dec 13, 2016 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1511 for 32-bit Systems | 10586.713 | [KB3205386](https://patchblox.com/security/data/fix/microsoft/kb3205386.md) | Dec 13, 2016 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1511 for x64-based Systems | 10586.713 | [KB3205386](https://patchblox.com/security/data/fix/microsoft/kb3205386.md) | Dec 13, 2016 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems |  | [KB3206632](https://patchblox.com/security/data/fix/microsoft/kb3206632.md) | Dec 13, 2016 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems |  | [KB3206632](https://patchblox.com/security/data/fix/microsoft/kb3206632.md) | Dec 13, 2016 |
| Microsoft | Internet Explorer 11 on Windows 10 for 32-bit Systems | 10240.17202 | [KB3205383](https://patchblox.com/security/data/fix/microsoft/kb3205383.md) | Dec 13, 2016 |
| Microsoft | Internet Explorer 11 on Windows 10 for x64-based Systems | 10240.17202 | [KB3205383](https://patchblox.com/security/data/fix/microsoft/kb3205383.md) | Dec 13, 2016 |
| Microsoft | Internet Explorer 11 on Windows 8.1 for 32-bit systems |  | [KB3205400](https://patchblox.com/security/data/fix/microsoft/kb3205400.md) | Dec 13, 2016 |
| Microsoft | Internet Explorer 11 on Windows 8.1 for 32-bit systems |  | [KB3205401](https://patchblox.com/security/data/fix/microsoft/kb3205401.md) | Dec 13, 2016 |
| Microsoft | Internet Explorer 11 on Windows 8.1 for x64-based systems |  | [KB3205400](https://patchblox.com/security/data/fix/microsoft/kb3205400.md) | Dec 13, 2016 |
| Microsoft | Internet Explorer 11 on Windows 8.1 for x64-based systems |  | [KB3205401](https://patchblox.com/security/data/fix/microsoft/kb3205401.md) | Dec 13, 2016 |
| Microsoft | Internet Explorer 11 on Windows RT 8.1 |  | [KB3205401](https://patchblox.com/security/data/fix/microsoft/kb3205401.md) | Dec 13, 2016 |
| Microsoft | Internet Explorer 11 on Windows Server 2012 R2 |  | [KB3205400](https://patchblox.com/security/data/fix/microsoft/kb3205400.md) | Dec 13, 2016 |
| Microsoft | Internet Explorer 11 on Windows Server 2012 R2 |  | [KB3205401](https://patchblox.com/security/data/fix/microsoft/kb3205401.md) | Dec 13, 2016 |
| Microsoft | Internet Explorer 11 on Windows Server 2016 |  | [KB3206632](https://patchblox.com/security/data/fix/microsoft/kb3206632.md) | Dec 13, 2016 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for 32-bit Systems | 10586.713 | [KB3205386](https://patchblox.com/security/data/fix/microsoft/kb3205386.md) | Dec 13, 2016 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for x64-based Systems | 10586.713 | [KB3205386](https://patchblox.com/security/data/fix/microsoft/kb3205386.md) | Dec 13, 2016 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems |  | [KB3206632](https://patchblox.com/security/data/fix/microsoft/kb3206632.md) | Dec 13, 2016 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems |  | [KB3206632](https://patchblox.com/security/data/fix/microsoft/kb3206632.md) | Dec 13, 2016 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems | 10240.17202 | [KB3205383](https://patchblox.com/security/data/fix/microsoft/kb3205383.md) | Dec 13, 2016 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems | 10240.17202 | [KB3205383](https://patchblox.com/security/data/fix/microsoft/kb3205383.md) | Dec 13, 2016 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows Server 2016 |  | [KB3206632](https://patchblox.com/security/data/fix/microsoft/kb3206632.md) | Dec 13, 2016 |
| Microsoft | Microsoft Windows Hyperlink Object Library on Windows Server 2008 for 32-bit Systems Service Pack 2 |  | [KB3208481](https://patchblox.com/security/data/fix/microsoft/kb3208481.md) | Dec 13, 2016 |
| Microsoft | Microsoft Windows Hyperlink Object Library on Windows Server 2008 for x64-based Systems Service Pack 2 |  | [KB3208481](https://patchblox.com/security/data/fix/microsoft/kb3208481.md) | Dec 13, 2016 |
| Microsoft | Microsoft Windows Hyperlink Object Library on Windows Vista Service Pack 2 |  | [KB3208481](https://patchblox.com/security/data/fix/microsoft/kb3208481.md) | Dec 13, 2016 |
| Microsoft | Microsoft Windows Hyperlink Object Library on Windows Vista x64 Edition Service Pack 2 |  | [KB3208481](https://patchblox.com/security/data/fix/microsoft/kb3208481.md) | Dec 13, 2016 |

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