# CVE-2017-0166: LDAP Elevation of Privilege Vulnerability CVE-2017-0166 is fixed in 29 products on 1 platform, first by KB4015219, released April 11, 2017. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2017-0166 - Priority: High - CVSS: 8.1 (Important) - EPSS: 0.0642 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation Less Likely - Published: Apr 11, 2017 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2017-0166 ## Description

An elevation of privilege vulnerability exists when LDAP request buffer lengths are improperly calculated. In a remote attack scenario, an attacker could exploit this vulnerability by running a specially crafted application to send malicious traffic to a Domain Controller. An attacker who successfully exploited this vulnerability could run processes in an elevated context.

The update addresses the vulnerability by correcting how LDAP request buffer lengths are calculated.

## 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 | | [KB4015068](https://patchblox.com/security/data/fix/microsoft/kb4015068.md) | Apr 11, 2017 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | | [KB4015068](https://patchblox.com/security/data/fix/microsoft/kb4015068.md) | Apr 11, 2017 | | Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 | | [KB4015068](https://patchblox.com/security/data/fix/microsoft/kb4015068.md) | Apr 11, 2017 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4015068](https://patchblox.com/security/data/fix/microsoft/kb4015068.md) | Apr 11, 2017 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB4015068](https://patchblox.com/security/data/fix/microsoft/kb4015068.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 | | [KB4015068](https://patchblox.com/security/data/fix/microsoft/kb4015068.md) | Apr 11, 2017 | | Microsoft | Windows Vista x64 Edition Service Pack 2 | | [KB4015068](https://patchblox.com/security/data/fix/microsoft/kb4015068.md) | Apr 11, 2017 | --- Data as of 2026-11-08T06:59:42Z 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 Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.