# CVE-2020-0706: Microsoft Browser Information Disclosure Vulnerability

CVE-2020-0706 is fixed in 40 products on 1 platform, first by KB4537764, released February 11, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-0706
- Priority: Routine
- CVSS: 4.3 (Important)
- EPSS: 0.0507
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: yes
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Feb 11, 2020
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-0706

## Description

<p>An information disclosure vulnerability exists in the way that affected Microsoft browsers handle cross-origin requests. An attacker who successfully exploited this vulnerability could determine the origin of all of the web pages in the affected browser.</p> <p>In a web-based attack scenario, an attacker could host a website that is used to attempt to exploit the vulnerability. Additionally, compromised websites and websites that accept or host user-provided content could contain specially crafted content that could be used to exploit the vulnerability. However, in all cases an attacker would have no way to force users to view attacker-controlled content. Instead, an attacker would have to convince users to take action. For example, an attacker could trick users into clicking a link that takes them to the attacker's site.</p> <p>The security update addresses the vulnerability by correcting how affected browsers handle cross-origin resources.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Internet Explorer 10 on Windows Server 2012 |  | [KB4537767](https://patchblox.com/security/data/fix/microsoft/kb4537767.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 10 on Windows Server 2012 |  | [KB4537814](https://patchblox.com/security/data/fix/microsoft/kb4537814.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems | 14393.3504 | [KB4537764](https://patchblox.com/security/data/fix/microsoft/kb4537764.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems | 14393.3504 | [KB4537764](https://patchblox.com/security/data/fix/microsoft/kb4537764.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems | 16299.1686 | [KB4537789](https://patchblox.com/security/data/fix/microsoft/kb4537789.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1709 for ARM64-based Systems | 16299.1686 | [KB4537789](https://patchblox.com/security/data/fix/microsoft/kb4537789.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems | 16299.1686 | [KB4537789](https://patchblox.com/security/data/fix/microsoft/kb4537789.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems | 17134.1304 | [KB4537762](https://patchblox.com/security/data/fix/microsoft/kb4537762.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1803 for ARM64-based Systems | 17134.1304 | [KB4537762](https://patchblox.com/security/data/fix/microsoft/kb4537762.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems | 17134.1304 | [KB4537762](https://patchblox.com/security/data/fix/microsoft/kb4537762.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems | 17763.1039 | [KB4532691](https://patchblox.com/security/data/fix/microsoft/kb4532691.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems | 17763.1039 | [KB4532691](https://patchblox.com/security/data/fix/microsoft/kb4532691.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems | 17763.1039 | [KB4532691](https://patchblox.com/security/data/fix/microsoft/kb4532691.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems |  | [KB4532693](https://patchblox.com/security/data/fix/microsoft/kb4532693.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems |  | [KB4532693](https://patchblox.com/security/data/fix/microsoft/kb4532693.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems |  | [KB4532693](https://patchblox.com/security/data/fix/microsoft/kb4532693.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1909 for 32-bit Systems |  | [KB4532693](https://patchblox.com/security/data/fix/microsoft/kb4532693.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1909 for ARM64-based Systems |  | [KB4532693](https://patchblox.com/security/data/fix/microsoft/kb4532693.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1909 for x64-based Systems |  | [KB4532693](https://patchblox.com/security/data/fix/microsoft/kb4532693.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 for 32-bit Systems | 10240.18486 | [KB4537776](https://patchblox.com/security/data/fix/microsoft/kb4537776.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 10 for x64-based Systems | 10240.18486 | [KB4537776](https://patchblox.com/security/data/fix/microsoft/kb4537776.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 8.1 for 32-bit systems |  | [KB4537821](https://patchblox.com/security/data/fix/microsoft/kb4537821.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 8.1 for 32-bit systems |  | [KB4537767](https://patchblox.com/security/data/fix/microsoft/kb4537767.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 8.1 for x64-based systems |  | [KB4537821](https://patchblox.com/security/data/fix/microsoft/kb4537821.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows 8.1 for x64-based systems |  | [KB4537767](https://patchblox.com/security/data/fix/microsoft/kb4537767.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows RT 8.1 |  | [KB4537821](https://patchblox.com/security/data/fix/microsoft/kb4537821.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows Server 2012 |  | [KB4537767](https://patchblox.com/security/data/fix/microsoft/kb4537767.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows Server 2012 |  | [KB4537814](https://patchblox.com/security/data/fix/microsoft/kb4537814.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows Server 2012 R2 |  | [KB4537821](https://patchblox.com/security/data/fix/microsoft/kb4537821.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows Server 2012 R2 |  | [KB4537767](https://patchblox.com/security/data/fix/microsoft/kb4537767.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows Server 2016 | 14393.3504 | [KB4537764](https://patchblox.com/security/data/fix/microsoft/kb4537764.md) | Feb 11, 2020 |
| Microsoft | Internet Explorer 11 on Windows Server 2019 | 17763.1039 | [KB4532691](https://patchblox.com/security/data/fix/microsoft/kb4532691.md) | Feb 11, 2020 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems | 17134.1304 | [KB4537762](https://patchblox.com/security/data/fix/microsoft/kb4537762.md) | Feb 11, 2020 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for ARM64-based Systems | 17134.1304 | [KB4537762](https://patchblox.com/security/data/fix/microsoft/kb4537762.md) | Feb 11, 2020 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems | 17134.1304 | [KB4537762](https://patchblox.com/security/data/fix/microsoft/kb4537762.md) | Feb 11, 2020 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for 32-bit Systems | 17763.1039 | [KB4532691](https://patchblox.com/security/data/fix/microsoft/kb4532691.md) | Feb 11, 2020 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for ARM64-based Systems | 17763.1039 | [KB4532691](https://patchblox.com/security/data/fix/microsoft/kb4532691.md) | Feb 11, 2020 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for x64-based Systems | 17763.1039 | [KB4532691](https://patchblox.com/security/data/fix/microsoft/kb4532691.md) | Feb 11, 2020 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for 32-bit Systems |  | [KB4532693](https://patchblox.com/security/data/fix/microsoft/kb4532693.md) | Feb 11, 2020 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for ARM64-based Systems |  | [KB4532693](https://patchblox.com/security/data/fix/microsoft/kb4532693.md) | Feb 11, 2020 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for x64-based Systems |  | [KB4532693](https://patchblox.com/security/data/fix/microsoft/kb4532693.md) | Feb 11, 2020 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for 32-bit Systems |  | [KB4532693](https://patchblox.com/security/data/fix/microsoft/kb4532693.md) | Feb 11, 2020 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for ARM64-based Systems |  | [KB4532693](https://patchblox.com/security/data/fix/microsoft/kb4532693.md) | Feb 11, 2020 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for x64-based Systems |  | [KB4532693](https://patchblox.com/security/data/fix/microsoft/kb4532693.md) | Feb 11, 2020 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows Server 2019 | 17763.1039 | [KB4532691](https://patchblox.com/security/data/fix/microsoft/kb4532691.md) | Feb 11, 2020 |

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