# CVE-2017-8498: Microsoft Edge Information Disclosure Vulnerability

CVE-2017-8498 is fixed in 5 products on 1 platform, first by KB4022715, released June 13, 2017. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2017-8498
- Priority: Routine
- CVSS: 4.3 (Moderate)
- EPSS: 0.0518
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: yes
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Jun 13, 2017
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2017-8498

## Description

<p>An information disclosure vulnerability exists in Microsoft Edge that allows JavaScript XML DOM objects to detect installed browser extensions.</p> <p>To exploit the vulnerability, in a web-based attack scenario, an attacker could host a malicious website in an attempt to make a user visit it. However, an attacker would have no way to force a user to view the attacker-controlled content. Instead, an attacker would have to convince a user to take action. For example, an attacker could trick a user into clicking a link that takes the user to the attacker's site.</p> <p>An attacker who successfully exploited the vulnerability could potentially read data not intended to be disclosed. Note that the vulnerability would not allow an attacker to either execute code or elevate a user’s rights directly, but the vulnerability could be used to obtain information in an attempt to further compromise the affected system.</p> <p>The security update addresses the vulnerability by restricting what information is returned to Microsoft Edge by affected JavaScript object methods.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems | 14393.1358 | [KB4022715](https://patchblox.com/security/data/fix/microsoft/kb4022715.md) | Jun 13, 2017 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems | 14393.1358 | [KB4022715](https://patchblox.com/security/data/fix/microsoft/kb4022715.md) | Jun 13, 2017 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for 32-bit Systems |  | [KB4022725](https://patchblox.com/security/data/fix/microsoft/kb4022725.md) | Jun 13, 2017 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for x64-based Systems |  | [KB4022725](https://patchblox.com/security/data/fix/microsoft/kb4022725.md) | Jun 13, 2017 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows Server 2016 | 14393.1358 | [KB4022715](https://patchblox.com/security/data/fix/microsoft/kb4022715.md) | Jun 13, 2017 |

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Data as of 2026-11-07T12:40:37Z 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