# CVE-2017-0298: Windows COM Session Elevation of Privilege Vulnerability CVE-2017-0298 is fixed in 22 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-2017-0298 - Priority: Urgent - CVSS: 6.6 (Important) - EPSS: 0.0190 - 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-2017-0298 ## Description

An elevation of privilege exists in Windows when a DCOM object in Helppane.exe, configured to run as the interactive user, fails to properly authenticate the client. An attacker who successfully exploited the vulnerability could run arbitrary code in another user's session.

To exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability after another user logged on to the same system via Terminal Services or Fast User Switching.

The update addresses the vulnerability by correcting how Helppane.exe authenticates the client.

## 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 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 2026-11-07T12:40:37Z 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