# CVE-2016-3228: Windows NetLogon Memory Corruption Remote Code Execution Vulnerability

CVE-2016-3228 is fixed in 9 products on 1 platform, first by KB3161561, released June 14, 2016. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2016-3228
- Priority: High
- CVSS: n/a (Important)
- EPSS: 0.1334
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: N/A
- Published: Jun 14, 2016
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2016-3228

## Description

<p>This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow remote code execution when Windows improperly handles objects in memory. An attacker who successfully exploited this vulnerability could gain the same user rights as the current user.</p> <p>To exploit the vulnerability, a domain-authenticated attacker could make a specially crafted NetLogon request to a domain controller. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.</p> <p>This update corrects how Windows handles objects in memory to prevent corruption.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 |  | [KB3161561](https://patchblox.com/security/data/fix/microsoft/kb3161561.md) | Jun 14, 2016 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB3161561](https://patchblox.com/security/data/fix/microsoft/kb3161561.md) | Jun 14, 2016 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 |  | [KB3161561](https://patchblox.com/security/data/fix/microsoft/kb3161561.md) | Jun 14, 2016 |
| Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 |  | [KB3161561](https://patchblox.com/security/data/fix/microsoft/kb3161561.md) | Jun 14, 2016 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 |  | [KB3161561](https://patchblox.com/security/data/fix/microsoft/kb3161561.md) | Jun 14, 2016 |
| Microsoft | Windows Server 2012 |  | [KB3161561](https://patchblox.com/security/data/fix/microsoft/kb3161561.md) | Jun 14, 2016 |
| Microsoft | Windows Server 2012 (Server Core installation) |  | [KB3161561](https://patchblox.com/security/data/fix/microsoft/kb3161561.md) | Jun 14, 2016 |
| Microsoft | Windows Server 2012 R2 |  | [KB3162343](https://patchblox.com/security/data/fix/microsoft/kb3162343.md) | Jun 14, 2016 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |  | [KB3162343](https://patchblox.com/security/data/fix/microsoft/kb3162343.md) | Jun 14, 2016 |

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Data as of 2026-11-10T20:03:11Z 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

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