# CVE-2016-0178: RPC Network Data Representation Engine Remote Code Execution Vulnerability CVE-2016-0178 is fixed in 23 products on 1 platform, first by KB3156421, released May 10, 2016. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2016-0178 - Priority: High - CVSS: n/a (Important) - EPSS: 0.1671 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation Less Likely - Published: May 10, 2016 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2016-0178 ## Description

A remote code execution vulnerability exists in the way Microsoft Windows handles specially crafted Remote Procedure Call (RPC) requests. The remote code execution can occur when the RPC Network Data Representation (NDR) Engine improperly frees memory. An authenticated attacker who successfully exploited this vulnerability could execute arbitrary code and 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.

An authenticated attacker could exploit the vulnerability by making malformed RPC requests to an affected host.

The update addresses this vulnerability by modifying the way that Microsoft Windows handles RPC messages.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Windows 10 Version 1511 for 32-bit Systems | 10586.318 | [KB3156421](https://patchblox.com/security/data/fix/microsoft/kb3156421.md) | May 10, 2016 | | Microsoft | Windows 10 Version 1511 for x64-based Systems | 10586.318 | [KB3156421](https://patchblox.com/security/data/fix/microsoft/kb3156421.md) | May 10, 2016 | | Microsoft | Windows 10 for 32-bit Systems | 10240.16854 | [KB3156387](https://patchblox.com/security/data/fix/microsoft/kb3156387.md) | May 10, 2016 | | Microsoft | Windows 10 for x64-based Systems | 10240.16854 | [KB3156387](https://patchblox.com/security/data/fix/microsoft/kb3156387.md) | May 10, 2016 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB3153171](https://patchblox.com/security/data/fix/microsoft/kb3153171.md) | May 10, 2016 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB3153171](https://patchblox.com/security/data/fix/microsoft/kb3153171.md) | May 10, 2016 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB3153704](https://patchblox.com/security/data/fix/microsoft/kb3153704.md) | May 10, 2016 | | Microsoft | Windows 8.1 for x64-based systems | | [KB3153704](https://patchblox.com/security/data/fix/microsoft/kb3153704.md) | May 10, 2016 | | Microsoft | Windows RT 8.1 | | [KB3153704](https://patchblox.com/security/data/fix/microsoft/kb3153704.md) | May 10, 2016 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB3153171](https://patchblox.com/security/data/fix/microsoft/kb3153171.md) | May 10, 2016 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB3153171](https://patchblox.com/security/data/fix/microsoft/kb3153171.md) | May 10, 2016 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB3153171](https://patchblox.com/security/data/fix/microsoft/kb3153171.md) | May 10, 2016 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 | | [KB3153171](https://patchblox.com/security/data/fix/microsoft/kb3153171.md) | May 10, 2016 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | | [KB3153171](https://patchblox.com/security/data/fix/microsoft/kb3153171.md) | May 10, 2016 | | Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 | | [KB3153171](https://patchblox.com/security/data/fix/microsoft/kb3153171.md) | May 10, 2016 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB3153171](https://patchblox.com/security/data/fix/microsoft/kb3153171.md) | May 10, 2016 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB3153171](https://patchblox.com/security/data/fix/microsoft/kb3153171.md) | May 10, 2016 | | Microsoft | Windows Server 2012 | | [KB3153704](https://patchblox.com/security/data/fix/microsoft/kb3153704.md) | May 10, 2016 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB3153704](https://patchblox.com/security/data/fix/microsoft/kb3153704.md) | May 10, 2016 | | Microsoft | Windows Server 2012 R2 | | [KB3153704](https://patchblox.com/security/data/fix/microsoft/kb3153704.md) | May 10, 2016 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB3153704](https://patchblox.com/security/data/fix/microsoft/kb3153704.md) | May 10, 2016 | | Microsoft | Windows Vista Service Pack 2 | | [KB3153171](https://patchblox.com/security/data/fix/microsoft/kb3153171.md) | May 10, 2016 | | Microsoft | Windows Vista x64 Edition Service Pack 2 | | [KB3153171](https://patchblox.com/security/data/fix/microsoft/kb3153171.md) | May 10, 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