# CVE-2018-0888: Windows Hyper-V Information Disclosure Vulnerability CVE-2018-0888 is fixed in 19 products on 1 platform, first by KB4088779, released March 13, 2018. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2018-0888 - Priority: High - CVSS: 7.2 (Important) - EPSS: 0.0143 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation Less Likely - Published: Mar 13, 2018 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2018-0888 ## 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 | 10586.1478 | [KB4088779](https://patchblox.com/security/data/fix/microsoft/kb4088779.md) | Mar 13, 2018 | | Microsoft | Windows 10 Version 1607 for x64-based Systems | | [KB4088787](https://patchblox.com/security/data/fix/microsoft/kb4088787.md) | Mar 13, 2018 | | Microsoft | Windows 10 Version 1703 for x64-based Systems | | [KB4088782](https://patchblox.com/security/data/fix/microsoft/kb4088782.md) | Mar 13, 2018 | | Microsoft | Windows 10 Version 1709 for x64-based Systems | 16299.309 | [KB4088776](https://patchblox.com/security/data/fix/microsoft/kb4088776.md) | Mar 13, 2018 | | Microsoft | Windows 10 for x64-based Systems | 10240.17797 | [KB4088786](https://patchblox.com/security/data/fix/microsoft/kb4088786.md) | Mar 13, 2018 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4088878](https://patchblox.com/security/data/fix/microsoft/kb4088878.md) | Mar 13, 2018 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4088875](https://patchblox.com/security/data/fix/microsoft/kb4088875.md) | Mar 13, 2018 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4088876](https://patchblox.com/security/data/fix/microsoft/kb4088876.md) | Mar 13, 2018 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4088879](https://patchblox.com/security/data/fix/microsoft/kb4088879.md) | Mar 13, 2018 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4088878](https://patchblox.com/security/data/fix/microsoft/kb4088878.md) | Mar 13, 2018 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4088875](https://patchblox.com/security/data/fix/microsoft/kb4088875.md) | Mar 13, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4088878](https://patchblox.com/security/data/fix/microsoft/kb4088878.md) | Mar 13, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4088875](https://patchblox.com/security/data/fix/microsoft/kb4088875.md) | Mar 13, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4088878](https://patchblox.com/security/data/fix/microsoft/kb4088878.md) | Mar 13, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4088875](https://patchblox.com/security/data/fix/microsoft/kb4088875.md) | Mar 13, 2018 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4088827](https://patchblox.com/security/data/fix/microsoft/kb4088827.md) | Mar 13, 2018 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB4088827](https://patchblox.com/security/data/fix/microsoft/kb4088827.md) | Mar 13, 2018 | | Microsoft | Windows Server 2012 | | [KB4088877](https://patchblox.com/security/data/fix/microsoft/kb4088877.md) | Mar 13, 2018 | | Microsoft | Windows Server 2012 | | [KB4088880](https://patchblox.com/security/data/fix/microsoft/kb4088880.md) | Mar 13, 2018 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4088877](https://patchblox.com/security/data/fix/microsoft/kb4088877.md) | Mar 13, 2018 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4088880](https://patchblox.com/security/data/fix/microsoft/kb4088880.md) | Mar 13, 2018 | | Microsoft | Windows Server 2012 R2 | | [KB4088876](https://patchblox.com/security/data/fix/microsoft/kb4088876.md) | Mar 13, 2018 | | Microsoft | Windows Server 2012 R2 | | [KB4088879](https://patchblox.com/security/data/fix/microsoft/kb4088879.md) | Mar 13, 2018 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4088876](https://patchblox.com/security/data/fix/microsoft/kb4088876.md) | Mar 13, 2018 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4088879](https://patchblox.com/security/data/fix/microsoft/kb4088879.md) | Mar 13, 2018 | | Microsoft | Windows Server 2016 | | [KB4088787](https://patchblox.com/security/data/fix/microsoft/kb4088787.md) | Mar 13, 2018 | | Microsoft | Windows Server 2016 (Server Core installation) | | [KB4088787](https://patchblox.com/security/data/fix/microsoft/kb4088787.md) | Mar 13, 2018 | | Microsoft | Windows Server, version 1709 (Server Core Installation) | 16299.309 | [KB4088776](https://patchblox.com/security/data/fix/microsoft/kb4088776.md) | Mar 13, 2018 | --- 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