# CVE-2019-1192: Microsoft Browsers Security Feature Bypass Vulnerability

CVE-2019-1192 is fixed in 49 products on 1 platform, first by KB4519998, released October 8, 2019. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2019-1192
- Priority: Urgent
- CVSS: 2.4 (Low)
- EPSS: 0.0371
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation More Likely
- Published: Aug 13, 2019
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1192

## Description

<p>A security feature bypass vulnerability exists when Microsoft browsers improperly handle requests of different origins. The vulnerability allows Microsoft browsers 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 browsers 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 browsers handle different-origin requests.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Internet Explorer 10 on Windows Server 2012 |  | [KB4520007](https://patchblox.com/security/data/fix/microsoft/kb4520007.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 10 on Windows Server 2012 |  | [KB4519974](https://patchblox.com/security/data/fix/microsoft/kb4519974.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems | 14393.3274 | [KB4519998](https://patchblox.com/security/data/fix/microsoft/kb4519998.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems | 14393.3274 | [KB4519998](https://patchblox.com/security/data/fix/microsoft/kb4519998.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems | 15063.2108 | [KB4520010](https://patchblox.com/security/data/fix/microsoft/kb4520010.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems | 15063.2108 | [KB4520010](https://patchblox.com/security/data/fix/microsoft/kb4520010.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems | 16299.1451 | [KB4520004](https://patchblox.com/security/data/fix/microsoft/kb4520004.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1709 for ARM64-based Systems | 16299.1451 | [KB4520004](https://patchblox.com/security/data/fix/microsoft/kb4520004.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems | 16299.1451 | [KB4520004](https://patchblox.com/security/data/fix/microsoft/kb4520004.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems | 17134.1069 | [KB4520008](https://patchblox.com/security/data/fix/microsoft/kb4520008.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1803 for ARM64-based Systems | 17134.1069 | [KB4520008](https://patchblox.com/security/data/fix/microsoft/kb4520008.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems | 17134.1069 | [KB4520008](https://patchblox.com/security/data/fix/microsoft/kb4520008.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems | 17763.805 | [KB4519338](https://patchblox.com/security/data/fix/microsoft/kb4519338.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems | 17763.805 | [KB4519338](https://patchblox.com/security/data/fix/microsoft/kb4519338.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems | 17763.805 | [KB4519338](https://patchblox.com/security/data/fix/microsoft/kb4519338.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems | 18362.418 | [KB4517389](https://patchblox.com/security/data/fix/microsoft/kb4517389.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems | 18362.418 | [KB4517389](https://patchblox.com/security/data/fix/microsoft/kb4517389.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems | 18362.418 | [KB4517389](https://patchblox.com/security/data/fix/microsoft/kb4517389.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 for 32-bit Systems | 10240.18368 | [KB4520011](https://patchblox.com/security/data/fix/microsoft/kb4520011.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 for x64-based Systems | 10240.18368 | [KB4520011](https://patchblox.com/security/data/fix/microsoft/kb4520011.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 |  | [KB4519976](https://patchblox.com/security/data/fix/microsoft/kb4519976.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 |  | [KB4519974](https://patchblox.com/security/data/fix/microsoft/kb4519974.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 |  | [KB4519976](https://patchblox.com/security/data/fix/microsoft/kb4519976.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 |  | [KB4519974](https://patchblox.com/security/data/fix/microsoft/kb4519974.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 8.1 for 32-bit systems |  | [KB4520005](https://patchblox.com/security/data/fix/microsoft/kb4520005.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 8.1 for 32-bit systems |  | [KB4519974](https://patchblox.com/security/data/fix/microsoft/kb4519974.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 8.1 for x64-based systems |  | [KB4520005](https://patchblox.com/security/data/fix/microsoft/kb4520005.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows 8.1 for x64-based systems |  | [KB4519974](https://patchblox.com/security/data/fix/microsoft/kb4519974.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows RT 8.1 |  | [KB4520005](https://patchblox.com/security/data/fix/microsoft/kb4520005.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB4519976](https://patchblox.com/security/data/fix/microsoft/kb4519976.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB4519974](https://patchblox.com/security/data/fix/microsoft/kb4519974.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows Server 2012 |  | [KB4519974](https://patchblox.com/security/data/fix/microsoft/kb4519974.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows Server 2012 R2 |  | [KB4520005](https://patchblox.com/security/data/fix/microsoft/kb4520005.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows Server 2012 R2 |  | [KB4519974](https://patchblox.com/security/data/fix/microsoft/kb4519974.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows Server 2016 | 14393.3274 | [KB4519998](https://patchblox.com/security/data/fix/microsoft/kb4519998.md) | Oct 8, 2019 |
| Microsoft | Internet Explorer 11 on Windows Server 2019 | 17763.805 | [KB4519338](https://patchblox.com/security/data/fix/microsoft/kb4519338.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems | 14393.3274 | [KB4519998](https://patchblox.com/security/data/fix/microsoft/kb4519998.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems | 14393.3274 | [KB4519998](https://patchblox.com/security/data/fix/microsoft/kb4519998.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for 32-bit Systems | 15063.2108 | [KB4520010](https://patchblox.com/security/data/fix/microsoft/kb4520010.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for x64-based Systems | 15063.2108 | [KB4520010](https://patchblox.com/security/data/fix/microsoft/kb4520010.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for 32-bit Systems | 16299.1451 | [KB4520004](https://patchblox.com/security/data/fix/microsoft/kb4520004.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for ARM64-based Systems | 16299.1451 | [KB4520004](https://patchblox.com/security/data/fix/microsoft/kb4520004.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for x64-based Systems | 16299.1451 | [KB4520004](https://patchblox.com/security/data/fix/microsoft/kb4520004.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems | 17134.1069 | [KB4520008](https://patchblox.com/security/data/fix/microsoft/kb4520008.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for ARM64-based Systems | 17134.1069 | [KB4520008](https://patchblox.com/security/data/fix/microsoft/kb4520008.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems | 17134.1069 | [KB4520008](https://patchblox.com/security/data/fix/microsoft/kb4520008.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for 32-bit Systems | 17763.805 | [KB4519338](https://patchblox.com/security/data/fix/microsoft/kb4519338.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for ARM64-based Systems | 17763.805 | [KB4519338](https://patchblox.com/security/data/fix/microsoft/kb4519338.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for x64-based Systems | 17763.805 | [KB4519338](https://patchblox.com/security/data/fix/microsoft/kb4519338.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for 32-bit Systems | 18362.418 | [KB4517389](https://patchblox.com/security/data/fix/microsoft/kb4517389.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for ARM64-based Systems | 18362.418 | [KB4517389](https://patchblox.com/security/data/fix/microsoft/kb4517389.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for x64-based Systems | 18362.418 | [KB4517389](https://patchblox.com/security/data/fix/microsoft/kb4517389.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems | 10240.18368 | [KB4520011](https://patchblox.com/security/data/fix/microsoft/kb4520011.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems | 10240.18368 | [KB4520011](https://patchblox.com/security/data/fix/microsoft/kb4520011.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows Server 2016 | 14393.3274 | [KB4519998](https://patchblox.com/security/data/fix/microsoft/kb4519998.md) | Oct 8, 2019 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows Server 2019 | 17763.805 | [KB4519338](https://patchblox.com/security/data/fix/microsoft/kb4519338.md) | Oct 8, 2019 |

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