# CVE-2019-1413: Microsoft Edge Security Feature Bypass Vulnerability CVE-2019-1413 is fixed in 16 products on 1 platform, first by KB4525236, released November 12, 2019. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2019-1413 - Priority: Routine - CVSS: 4.3 (Important) - EPSS: 0.0112 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation Less Likely - Published: Nov 12, 2019 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1413 ## Description

A security feature bypass vulnerability exists when Microsoft Edge improperly handles extension requests and fails to request host permission for all_urls. An attacker who successfully exploited this vulnerability could trick a browser into installing an extension without the user's consent.

To exploit the vulnerability, the user must either browse to a malicious website or be redirected to it. In an email attack scenario, an attacker could send an email message in an attempt to convince the user to click a link to a malicious site, which then can download an extension for all_urls without the user's knowledge.

In a web-based attack scenario, an attacker could host a specially crafted website designed to appear as a legitimate website to the user. However, the attacker would have no way to force the user to visit the specially crafted website. The attacker would have to convince the user to visit the specially crafted website, typically by way of an enticement in an email or instant message.

The security update addresses the vulnerability by correcting how Microsoft Edge handles host permissions for adding extensions.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems | 14393.3326 | [KB4525236](https://patchblox.com/security/data/fix/microsoft/kb4525236.md) | Nov 12, 2019 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems | 14393.3326 | [KB4525236](https://patchblox.com/security/data/fix/microsoft/kb4525236.md) | Nov 12, 2019 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for 32-bit Systems | 16299.1508 | [KB4525241](https://patchblox.com/security/data/fix/microsoft/kb4525241.md) | Nov 12, 2019 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for ARM64-based Systems | 16299.1508 | [KB4525241](https://patchblox.com/security/data/fix/microsoft/kb4525241.md) | Nov 12, 2019 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for x64-based Systems | 16299.1508 | [KB4525241](https://patchblox.com/security/data/fix/microsoft/kb4525241.md) | Nov 12, 2019 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems | 17134.1130 | [KB4525237](https://patchblox.com/security/data/fix/microsoft/kb4525237.md) | Nov 12, 2019 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for ARM64-based Systems | 17134.1130 | [KB4525237](https://patchblox.com/security/data/fix/microsoft/kb4525237.md) | Nov 12, 2019 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems | 17134.1130 | [KB4525237](https://patchblox.com/security/data/fix/microsoft/kb4525237.md) | Nov 12, 2019 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for 32-bit Systems | 17763.864 | [KB4523205](https://patchblox.com/security/data/fix/microsoft/kb4523205.md) | Nov 12, 2019 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for ARM64-based Systems | 17763.864 | [KB4523205](https://patchblox.com/security/data/fix/microsoft/kb4523205.md) | Nov 12, 2019 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for x64-based Systems | 17763.864 | [KB4523205](https://patchblox.com/security/data/fix/microsoft/kb4523205.md) | Nov 12, 2019 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for 32-bit Systems | | [KB4524570](https://patchblox.com/security/data/fix/microsoft/kb4524570.md) | Nov 12, 2019 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for ARM64-based Systems | | [KB4524570](https://patchblox.com/security/data/fix/microsoft/kb4524570.md) | Nov 12, 2019 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for x64-based Systems | | [KB4524570](https://patchblox.com/security/data/fix/microsoft/kb4524570.md) | Nov 12, 2019 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows Server 2016 | 14393.3326 | [KB4525236](https://patchblox.com/security/data/fix/microsoft/kb4525236.md) | Nov 12, 2019 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows Server 2019 | 17763.864 | [KB4523205](https://patchblox.com/security/data/fix/microsoft/kb4523205.md) | Nov 12, 2019 | --- Data as of 2026-11-08T00:53:09Z 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 Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.