# CVE-2016-3207: Scripting Engine Memory Corruption Vulnerability CVE-2016-3207 is fixed in 24 products on 1 platform, first by KB3163018, released June 14, 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-2016-3207 - Priority: Urgent - CVSS: n/a (Critical) - EPSS: 0.1740 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation More Likely - Published: Jun 14, 2016 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2016-3207 ## Description

A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers. 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 designed to exploit the vulnerability through a Microsoft browser 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 browser 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 | Internet Explorer 10 on Windows Server 2012 | | [KB3160005](https://patchblox.com/security/data/fix/microsoft/kb3160005.md) | Jun 14, 2016 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1511 for 32-bit Systems | 10586.420 | [KB3163018](https://patchblox.com/security/data/fix/microsoft/kb3163018.md) | Jun 14, 2016 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1511 for x64-based Systems | 10586.420 | [KB3163018](https://patchblox.com/security/data/fix/microsoft/kb3163018.md) | Jun 14, 2016 | | Microsoft | Internet Explorer 11 on Windows 10 for 32-bit Systems | 10240.16942 | [KB3163017](https://patchblox.com/security/data/fix/microsoft/kb3163017.md) | Jun 14, 2016 | | Microsoft | Internet Explorer 11 on Windows 10 for x64-based Systems | 10240.16942 | [KB3163017](https://patchblox.com/security/data/fix/microsoft/kb3163017.md) | Jun 14, 2016 | | Microsoft | Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1 | | [KB3160005](https://patchblox.com/security/data/fix/microsoft/kb3160005.md) | Jun 14, 2016 | | Microsoft | Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1 | | [KB3160005](https://patchblox.com/security/data/fix/microsoft/kb3160005.md) | Jun 14, 2016 | | Microsoft | Internet Explorer 11 on Windows 8.1 for 32-bit systems | | [KB3160005](https://patchblox.com/security/data/fix/microsoft/kb3160005.md) | Jun 14, 2016 | | Microsoft | Internet Explorer 11 on Windows 8.1 for x64-based systems | | [KB3160005](https://patchblox.com/security/data/fix/microsoft/kb3160005.md) | Jun 14, 2016 | | Microsoft | Internet Explorer 11 on Windows RT 8.1 | | [KB3160005](https://patchblox.com/security/data/fix/microsoft/kb3160005.md) | Jun 14, 2016 | | Microsoft | Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB3160005](https://patchblox.com/security/data/fix/microsoft/kb3160005.md) | Jun 14, 2016 | | Microsoft | Internet Explorer 11 on Windows Server 2012 R2 | | [KB3160005](https://patchblox.com/security/data/fix/microsoft/kb3160005.md) | Jun 14, 2016 | | Microsoft | Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2 | | [KB3160005](https://patchblox.com/security/data/fix/microsoft/kb3160005.md) | Jun 14, 2016 | | Microsoft | Internet Explorer 9 on Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB3160005](https://patchblox.com/security/data/fix/microsoft/kb3160005.md) | Jun 14, 2016 | | Microsoft | Internet Explorer 9 on Windows Vista Service Pack 2 | | [KB3160005](https://patchblox.com/security/data/fix/microsoft/kb3160005.md) | Jun 14, 2016 | | Microsoft | Internet Explorer 9 on Windows Vista x64 Edition Service Pack 2 | | [KB3160005](https://patchblox.com/security/data/fix/microsoft/kb3160005.md) | Jun 14, 2016 | | Microsoft | VBScript 5.7 on Windows Server 2008 for 32-bit Systems Service Pack 2 | | [KB3158364](https://patchblox.com/security/data/fix/microsoft/kb3158364.md) | Jun 14, 2016 | | Microsoft | VBScript 5.7 on Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | | [KB3158364](https://patchblox.com/security/data/fix/microsoft/kb3158364.md) | Jun 14, 2016 | | Microsoft | VBScript 5.7 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 | | [KB3158364](https://patchblox.com/security/data/fix/microsoft/kb3158364.md) | Jun 14, 2016 | | Microsoft | VBScript 5.7 on Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB3158364](https://patchblox.com/security/data/fix/microsoft/kb3158364.md) | Jun 14, 2016 | | Microsoft | VBScript 5.7 on Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB3158364](https://patchblox.com/security/data/fix/microsoft/kb3158364.md) | Jun 14, 2016 | | Microsoft | VBScript 5.7 on Windows Vista Service Pack 2 | | [KB3158364](https://patchblox.com/security/data/fix/microsoft/kb3158364.md) | Jun 14, 2016 | | Microsoft | VBScript 5.7 on Windows Vista x64 Edition Service Pack 2 | | [KB3158364](https://patchblox.com/security/data/fix/microsoft/kb3158364.md) | Jun 14, 2016 | | Microsoft | VBScript 5.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB3158363](https://patchblox.com/security/data/fix/microsoft/kb3158363.md) | Jun 14, 2016 | --- Data as of 2026-11-07T18:46:35Z UTC. 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