CVE-2018-8434

MediumCVSS 5.4/10Last modified Jun 17, 2026

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, aka "Windows Hyper-V Information Disclosure Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.

Metrics

CVSS 3.0 5.4/10CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N

Weakness enumeration

CWE-20CWE-200

Affected software

VendorProductVersions
MicrosoftWindows 7x64-based Systems Service Pack 1
MicrosoftWindows Server 2012 R2(Server Core installation)
MicrosoftWindows RT 8.1Windows RT 8.1
MicrosoftWindows Server 2008x64-based Systems Service Pack 2; x64-based Systems Service Pack 2 (Server Core installation)
MicrosoftWindows Server 2012(Server Core installation)
MicrosoftWindows 8.1x64-based systems
MicrosoftWindows Server 2016(Server Core installation)
MicrosoftWindows Server 2008 R2x64-based Systems Service Pack 1; x64-based Systems Service Pack 1 (Server Core installation)
MicrosoftWindows 10Version 1607 for x64-based Systems; Version 1703 for x64-based Systems; Version 1709 for x64-based Systems; Version 1803 for x64-based Systems; x64-based Systems
MicrosoftWindows 10 Serversversion 1709 (Server Core Installation); version 1803 (Server Core Installation)

References

Timeline

Published
Sep 13, 2018
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2018

CVE-2018-84354.2A security feature bypass vulnerability exists when Windows Hyper-V BIOS loader fails to provide a high-entropy source, aka "Windows Hyper-VCVE-2018-84366.2A denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server fails to properly validate input from a privCVE-2018-84376.2A denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server fails to properly validate input from a privCVE-2018-84386.8A denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server fails to properly validate input from a privCVE-2018-84398.4A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated usCVE-2018-84407.8An elevation of privilege vulnerability exists when Windows improperly handles calls to Advanced Local Procedure Call (ALPC), aka "Windows ACVE-2018-84417.8An elevation of privilege vulnerability exists due to an integer overflow in Windows Subsystem for Linux, aka "Windows Subsystem for Linux ECVE-2018-84425.5An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory, aka "Windows Kernel InformationCVE-2018-84435.5An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory, aka "Windows Kernel InformationCVE-2018-84445.9An information disclosure vulnerability exists in the way that the Microsoft Server Message Block 2.0 (SMBv2) server handles certain requestCVE-2018-84455.5An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory, aka "Windows Kernel InformationCVE-2018-84465.5An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory, aka "Windows Kernel Information
CVE-2018-8434: Medium severity, CVSS 5.4 | Vulnix