# CVE-2017-0296: Windows TDX Elevation of Privilege Vulnerability CVE-2017-0296 is fixed in 27 products on 1 platform, first by KB4022714, released June 13, 2017. 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-2017-0296 - Priority: Urgent - CVSS: 7.0 (Important) - EPSS: 0.0132 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation More Likely - Published: Jun 13, 2017 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2017-0296 ## Description

An elevation of privilege vulnerability exists when tdx.sys fails to check the length of a buffer prior to copying memory to it.

To exploit the vulnerability, in a local attack scenario, an attacker could run a specially crafted application to elevate the attacker's privilege level. An attacker who successfully exploited this vulnerability could run processes in an elevated context.

However, an attacker must first gain access to the local system with the ability to execute a malicious application in order to exploit this vulnerability.

The security update addresses the vulnerability by changing how tdx.sys validates buffer length.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Windows 10 Version 1511 for 32-bit Systems | 10586.962 | [KB4022714](https://patchblox.com/security/data/fix/microsoft/kb4022714.md) | Jun 13, 2017 | | Microsoft | Windows 10 Version 1511 for x64-based Systems | 10586.962 | [KB4022714](https://patchblox.com/security/data/fix/microsoft/kb4022714.md) | Jun 13, 2017 | | Microsoft | Windows 10 Version 1607 for 32-bit Systems | 14393.1358 | [KB4022715](https://patchblox.com/security/data/fix/microsoft/kb4022715.md) | Jun 13, 2017 | | Microsoft | Windows 10 Version 1607 for x64-based Systems | 14393.1358 | [KB4022715](https://patchblox.com/security/data/fix/microsoft/kb4022715.md) | Jun 13, 2017 | | Microsoft | Windows 10 Version 1703 for 32-bit Systems | | [KB4022725](https://patchblox.com/security/data/fix/microsoft/kb4022725.md) | Jun 13, 2017 | | Microsoft | Windows 10 Version 1703 for x64-based Systems | | [KB4022725](https://patchblox.com/security/data/fix/microsoft/kb4022725.md) | Jun 13, 2017 | | Microsoft | Windows 10 for 32-bit Systems | 10240.17443 | [KB4022727](https://patchblox.com/security/data/fix/microsoft/kb4022727.md) | Jun 13, 2017 | | Microsoft | Windows 10 for x64-based Systems | 10240.17443 | [KB4022727](https://patchblox.com/security/data/fix/microsoft/kb4022727.md) | Jun 13, 2017 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4022719](https://patchblox.com/security/data/fix/microsoft/kb4022719.md) | Jun 13, 2017 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4022722](https://patchblox.com/security/data/fix/microsoft/kb4022722.md) | Jun 13, 2017 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4022719](https://patchblox.com/security/data/fix/microsoft/kb4022719.md) | Jun 13, 2017 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4022722](https://patchblox.com/security/data/fix/microsoft/kb4022722.md) | Jun 13, 2017 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4022717](https://patchblox.com/security/data/fix/microsoft/kb4022717.md) | Jun 13, 2017 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4022726](https://patchblox.com/security/data/fix/microsoft/kb4022726.md) | Jun 13, 2017 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4022717](https://patchblox.com/security/data/fix/microsoft/kb4022717.md) | Jun 13, 2017 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4022726](https://patchblox.com/security/data/fix/microsoft/kb4022726.md) | Jun 13, 2017 | | Microsoft | Windows RT 8.1 | | [KB4022726](https://patchblox.com/security/data/fix/microsoft/kb4022726.md) | Jun 13, 2017 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4022719](https://patchblox.com/security/data/fix/microsoft/kb4022719.md) | Jun 13, 2017 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4022722](https://patchblox.com/security/data/fix/microsoft/kb4022722.md) | Jun 13, 2017 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4022719](https://patchblox.com/security/data/fix/microsoft/kb4022719.md) | Jun 13, 2017 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4022722](https://patchblox.com/security/data/fix/microsoft/kb4022722.md) | Jun 13, 2017 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4022719](https://patchblox.com/security/data/fix/microsoft/kb4022719.md) | Jun 13, 2017 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4022722](https://patchblox.com/security/data/fix/microsoft/kb4022722.md) | Jun 13, 2017 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 | | [KB4021923](https://patchblox.com/security/data/fix/microsoft/kb4021923.md) | Jun 13, 2017 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | | [KB4021923](https://patchblox.com/security/data/fix/microsoft/kb4021923.md) | Jun 13, 2017 | | Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 | | [KB4021923](https://patchblox.com/security/data/fix/microsoft/kb4021923.md) | Jun 13, 2017 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4021923](https://patchblox.com/security/data/fix/microsoft/kb4021923.md) | Jun 13, 2017 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB4021923](https://patchblox.com/security/data/fix/microsoft/kb4021923.md) | Jun 13, 2017 | | Microsoft | Windows Server 2012 | | [KB4022724](https://patchblox.com/security/data/fix/microsoft/kb4022724.md) | Jun 13, 2017 | | Microsoft | Windows Server 2012 | | [KB4022718](https://patchblox.com/security/data/fix/microsoft/kb4022718.md) | Jun 13, 2017 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4022724](https://patchblox.com/security/data/fix/microsoft/kb4022724.md) | Jun 13, 2017 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4022718](https://patchblox.com/security/data/fix/microsoft/kb4022718.md) | Jun 13, 2017 | | Microsoft | Windows Server 2012 R2 | | [KB4022717](https://patchblox.com/security/data/fix/microsoft/kb4022717.md) | Jun 13, 2017 | | Microsoft | Windows Server 2012 R2 | | [KB4022726](https://patchblox.com/security/data/fix/microsoft/kb4022726.md) | Jun 13, 2017 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4022717](https://patchblox.com/security/data/fix/microsoft/kb4022717.md) | Jun 13, 2017 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4022726](https://patchblox.com/security/data/fix/microsoft/kb4022726.md) | Jun 13, 2017 | | Microsoft | Windows Server 2016 | 14393.1358 | [KB4022715](https://patchblox.com/security/data/fix/microsoft/kb4022715.md) | Jun 13, 2017 | | Microsoft | Windows Server 2016 (Server Core installation) | 14393.1358 | [KB4022715](https://patchblox.com/security/data/fix/microsoft/kb4022715.md) | Jun 13, 2017 | --- Data as of 2026-11-08T06:59:42Z UTC. 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