# CVE-2016-0158: Microsoft Edge Elevation of Privilege Vulnerability

CVE-2016-0158 is fixed in 4 products on 1 platform, first by KB3147458, released April 12, 2016. 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-2016-0158
- Priority: Urgent
- CVSS: n/a (Important)
- EPSS: 0.1472
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation More Likely
- Published: Apr 12, 2016
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2016-0158

## Description

<p>An elevation of privilege vulnerability exists when Microsoft Edge does not properly enforce cross-domain policies, which could allow an attacker to access information from one domain and inject it into another domain.</p> <p>In a web-based attack scenario, an attacker could host a website that is used to attempt to exploit the vulnerability. In addition, compromised websites and websites that accept or host user-provided content could contain specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force users to view the 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. An attacker who successfully exploited this vulnerability could elevate privileges in affected versions of Microsoft Edge.</p> <p>The security update addresses the vulnerability by helping to ensure that cross-domain policies are properly enforced in Microsoft Edge.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for 32-bit Systems | 10586.218 | [KB3147458](https://patchblox.com/security/data/fix/microsoft/kb3147458.md) | Apr 12, 2016 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for x64-based Systems | 10586.218 | [KB3147458](https://patchblox.com/security/data/fix/microsoft/kb3147458.md) | Apr 12, 2016 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems |  | [KB3147461](https://patchblox.com/security/data/fix/microsoft/kb3147461.md) | Apr 12, 2016 |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems |  | [KB3147461](https://patchblox.com/security/data/fix/microsoft/kb3147461.md) | Apr 12, 2016 |

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Data as of 2026-11-07T06:34:28Z 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