An information disclosure vulnerability exists when affected Microsoft browsers improperly handle objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system.
To exploit the vulnerability, 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 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.
The security update addresses the vulnerability by modifying how Microsoft browsers handle objects in memory.
## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Internet Explorer 10 on Windows Server 2012 | | [KB3170106](https://patchblox.com/security/data/fix/microsoft/kb3170106.md) | Jul 12, 2016 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1511 for 32-bit Systems | 10586.494 | [KB3172985](https://patchblox.com/security/data/fix/microsoft/kb3172985.md) | Jul 12, 2016 | | Microsoft | Internet Explorer 11 on Windows 10 Version 1511 for x64-based Systems | 10586.494 | [KB3172985](https://patchblox.com/security/data/fix/microsoft/kb3172985.md) | Jul 12, 2016 | | Microsoft | Internet Explorer 11 on Windows 10 for 32-bit Systems | 10240.17024 | [KB3163912](https://patchblox.com/security/data/fix/microsoft/kb3163912.md) | Jul 12, 2016 | | Microsoft | Internet Explorer 11 on Windows 10 for x64-based Systems | 10240.17024 | [KB3163912](https://patchblox.com/security/data/fix/microsoft/kb3163912.md) | Jul 12, 2016 | | Microsoft | Internet Explorer 11 on Windows 8.1 for 32-bit systems | | [KB3170106](https://patchblox.com/security/data/fix/microsoft/kb3170106.md) | Jul 12, 2016 | | Microsoft | Internet Explorer 11 on Windows 8.1 for x64-based systems | | [KB3170106](https://patchblox.com/security/data/fix/microsoft/kb3170106.md) | Jul 12, 2016 | | Microsoft | Internet Explorer 11 on Windows RT 8.1 | | [KB3170106](https://patchblox.com/security/data/fix/microsoft/kb3170106.md) | Jul 12, 2016 | | Microsoft | Internet Explorer 11 on Windows Server 2012 R2 | | [KB3170106](https://patchblox.com/security/data/fix/microsoft/kb3170106.md) | Jul 12, 2016 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for 32-bit Systems | 10586.494 | [KB3172985](https://patchblox.com/security/data/fix/microsoft/kb3172985.md) | Jul 12, 2016 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for x64-based Systems | 10586.494 | [KB3172985](https://patchblox.com/security/data/fix/microsoft/kb3172985.md) | Jul 12, 2016 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems | 10240.17024 | [KB3163912](https://patchblox.com/security/data/fix/microsoft/kb3163912.md) | Jul 12, 2016 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems | 10240.17024 | [KB3163912](https://patchblox.com/security/data/fix/microsoft/kb3163912.md) | Jul 12, 2016 | --- 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