# CVE-2017-8707: Windows Hyper-V Information Disclosure Vulnerability CVE-2017-8707 is fixed in 15 products on 1 platform, first by KB4038783, released September 12, 2017. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2017-8707 - Priority: High - CVSS: 7.2 (Important) - EPSS: 0.0242 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation Less Likely - Published: Sep 12, 2017 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2017-8707 ## Description

An information disclosure vulnerability exists when Windows Hyper-V on a host operating system fails to properly validate input from an authenticated user on a guest operating system. To exploit the vulnerability, an attacker on a guest operating system could run a specially crafted application that could cause the Hyper-V host operating system to disclose memory information.

An attacker who successfully exploited the vulnerability could gain access to information on the Hyper-V host operating system.

The security update addresses the vulnerability by correcting how Hyper-V validates guest operating system user input.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Windows 10 Version 1511 for x64-based Systems | 10586.1106 | [KB4038783](https://patchblox.com/security/data/fix/microsoft/kb4038783.md) | Sep 12, 2017 | | Microsoft | Windows 10 Version 1607 for x64-based Systems | 14393.1715 | [KB4038782](https://patchblox.com/security/data/fix/microsoft/kb4038782.md) | Sep 12, 2017 | | Microsoft | Windows 10 Version 1703 for x64-based Systems | 15063.608 | [KB4038788](https://patchblox.com/security/data/fix/microsoft/kb4038788.md) | Sep 12, 2017 | | Microsoft | Windows 10 for x64-based Systems | 10240.17609 | [KB4038781](https://patchblox.com/security/data/fix/microsoft/kb4038781.md) | Sep 12, 2017 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4038792](https://patchblox.com/security/data/fix/microsoft/kb4038792.md) | Sep 12, 2017 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4038793](https://patchblox.com/security/data/fix/microsoft/kb4038793.md) | Sep 12, 2017 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4038779](https://patchblox.com/security/data/fix/microsoft/kb4038779.md) | Sep 12, 2017 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4038777](https://patchblox.com/security/data/fix/microsoft/kb4038777.md) | Sep 12, 2017 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4038779](https://patchblox.com/security/data/fix/microsoft/kb4038779.md) | Sep 12, 2017 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4038777](https://patchblox.com/security/data/fix/microsoft/kb4038777.md) | Sep 12, 2017 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4039325](https://patchblox.com/security/data/fix/microsoft/kb4039325.md) | Sep 12, 2017 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB4039325](https://patchblox.com/security/data/fix/microsoft/kb4039325.md) | Sep 12, 2017 | | Microsoft | Windows Server 2012 | | [KB4038786](https://patchblox.com/security/data/fix/microsoft/kb4038786.md) | Sep 12, 2017 | | Microsoft | Windows Server 2012 | | [KB4038799](https://patchblox.com/security/data/fix/microsoft/kb4038799.md) | Sep 12, 2017 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4038786](https://patchblox.com/security/data/fix/microsoft/kb4038786.md) | Sep 12, 2017 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4038799](https://patchblox.com/security/data/fix/microsoft/kb4038799.md) | Sep 12, 2017 | | Microsoft | Windows Server 2012 R2 | | [KB4038792](https://patchblox.com/security/data/fix/microsoft/kb4038792.md) | Sep 12, 2017 | | Microsoft | Windows Server 2012 R2 | | [KB4038793](https://patchblox.com/security/data/fix/microsoft/kb4038793.md) | Sep 12, 2017 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4038792](https://patchblox.com/security/data/fix/microsoft/kb4038792.md) | Sep 12, 2017 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4038793](https://patchblox.com/security/data/fix/microsoft/kb4038793.md) | Sep 12, 2017 | | Microsoft | Windows Server 2016 | 14393.1715 | [KB4038782](https://patchblox.com/security/data/fix/microsoft/kb4038782.md) | Sep 12, 2017 | | Microsoft | Windows Server 2016 (Server Core installation) | 14393.1715 | [KB4038782](https://patchblox.com/security/data/fix/microsoft/kb4038782.md) | Sep 12, 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