# CVE-2017-0158: Scripting Engine Memory Corruption Vulnerability CVE-2017-0158 is fixed in 29 products on 1 platform, first by KB4015219, released April 11, 2017. 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-2017-0158 - Priority: Urgent - CVSS: 7.5 (Critical) - EPSS: 0.1279 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation More Likely - Published: Apr 11, 2017 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2017-0158 ## Description

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. An attacker could also embed an ActiveX control marked "safe for initialization" in an application or Microsoft Office document that hosts the IE rendering engine. 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.

The security update addresses the vulnerability by modifying how the scripting engine handles objects in memory.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Windows 10 Version 1511 for 32-bit Systems | 10586.873 | [KB4015219](https://patchblox.com/security/data/fix/microsoft/kb4015219.md) | Apr 11, 2017 | | Microsoft | Windows 10 Version 1511 for x64-based Systems | 10586.873 | [KB4015219](https://patchblox.com/security/data/fix/microsoft/kb4015219.md) | Apr 11, 2017 | | Microsoft | Windows 10 Version 1607 for 32-bit Systems | | [KB4015217](https://patchblox.com/security/data/fix/microsoft/kb4015217.md) | Apr 11, 2017 | | Microsoft | Windows 10 Version 1607 for x64-based Systems | | [KB4015217](https://patchblox.com/security/data/fix/microsoft/kb4015217.md) | Apr 11, 2017 | | Microsoft | Windows 10 Version 1703 for 32-bit Systems | 15063.138 | [KB4015583](https://patchblox.com/security/data/fix/microsoft/kb4015583.md) | Apr 11, 2017 | | Microsoft | Windows 10 Version 1703 for x64-based Systems | 15063.138 | [KB4015583](https://patchblox.com/security/data/fix/microsoft/kb4015583.md) | Apr 11, 2017 | | Microsoft | Windows 10 for 32-bit Systems | 10240.17354 | [KB4015221](https://patchblox.com/security/data/fix/microsoft/kb4015221.md) | Apr 11, 2017 | | Microsoft | Windows 10 for x64-based Systems | 10240.17354 | [KB4015221](https://patchblox.com/security/data/fix/microsoft/kb4015221.md) | Apr 11, 2017 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4015549](https://patchblox.com/security/data/fix/microsoft/kb4015549.md) | Apr 11, 2017 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4015546](https://patchblox.com/security/data/fix/microsoft/kb4015546.md) | Apr 11, 2017 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4015549](https://patchblox.com/security/data/fix/microsoft/kb4015549.md) | Apr 11, 2017 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4015546](https://patchblox.com/security/data/fix/microsoft/kb4015546.md) | Apr 11, 2017 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4015547](https://patchblox.com/security/data/fix/microsoft/kb4015547.md) | Apr 11, 2017 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4015550](https://patchblox.com/security/data/fix/microsoft/kb4015550.md) | Apr 11, 2017 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4015547](https://patchblox.com/security/data/fix/microsoft/kb4015547.md) | Apr 11, 2017 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4015550](https://patchblox.com/security/data/fix/microsoft/kb4015550.md) | Apr 11, 2017 | | Microsoft | Windows RT 8.1 | | [KB4015550](https://patchblox.com/security/data/fix/microsoft/kb4015550.md) | Apr 11, 2017 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4015549](https://patchblox.com/security/data/fix/microsoft/kb4015549.md) | Apr 11, 2017 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4015546](https://patchblox.com/security/data/fix/microsoft/kb4015546.md) | Apr 11, 2017 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4015549](https://patchblox.com/security/data/fix/microsoft/kb4015549.md) | Apr 11, 2017 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4015546](https://patchblox.com/security/data/fix/microsoft/kb4015546.md) | Apr 11, 2017 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4015549](https://patchblox.com/security/data/fix/microsoft/kb4015549.md) | Apr 11, 2017 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4015546](https://patchblox.com/security/data/fix/microsoft/kb4015546.md) | Apr 11, 2017 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 | | [KB4020535](https://patchblox.com/security/data/fix/microsoft/kb4020535.md) | Apr 11, 2017 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | | [KB4020535](https://patchblox.com/security/data/fix/microsoft/kb4020535.md) | Apr 11, 2017 | | Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 | | [KB4020535](https://patchblox.com/security/data/fix/microsoft/kb4020535.md) | Apr 11, 2017 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4020535](https://patchblox.com/security/data/fix/microsoft/kb4020535.md) | Apr 11, 2017 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB4020535](https://patchblox.com/security/data/fix/microsoft/kb4020535.md) | Apr 11, 2017 | | Microsoft | Windows Server 2012 | | [KB4015551](https://patchblox.com/security/data/fix/microsoft/kb4015551.md) | Apr 11, 2017 | | Microsoft | Windows Server 2012 | | [KB4015548](https://patchblox.com/security/data/fix/microsoft/kb4015548.md) | Apr 11, 2017 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4015551](https://patchblox.com/security/data/fix/microsoft/kb4015551.md) | Apr 11, 2017 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4015548](https://patchblox.com/security/data/fix/microsoft/kb4015548.md) | Apr 11, 2017 | | Microsoft | Windows Server 2012 R2 | | [KB4015547](https://patchblox.com/security/data/fix/microsoft/kb4015547.md) | Apr 11, 2017 | | Microsoft | Windows Server 2012 R2 | | [KB4015550](https://patchblox.com/security/data/fix/microsoft/kb4015550.md) | Apr 11, 2017 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4015547](https://patchblox.com/security/data/fix/microsoft/kb4015547.md) | Apr 11, 2017 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4015550](https://patchblox.com/security/data/fix/microsoft/kb4015550.md) | Apr 11, 2017 | | Microsoft | Windows Server 2016 | | [KB4015217](https://patchblox.com/security/data/fix/microsoft/kb4015217.md) | Apr 11, 2017 | | Microsoft | Windows Server 2016 (Server Core installation) | | [KB4015217](https://patchblox.com/security/data/fix/microsoft/kb4015217.md) | Apr 11, 2017 | | Microsoft | Windows Vista Service Pack 2 | | [KB4015067](https://patchblox.com/security/data/fix/microsoft/kb4015067.md) | Apr 11, 2017 | | Microsoft | Windows Vista x64 Edition Service Pack 2 | | [KB4015067](https://patchblox.com/security/data/fix/microsoft/kb4015067.md) | Apr 11, 2017 | --- 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