CVE-2018-8434Improper Input Validation in Microsoft Windows 10

Severity
5.4MEDIUMNVD
EPSS
1.3%
top 20.13%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedSep 13
Latest updateMay 13

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.

CVSS vector

CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:NExploitability: 1.0 | Impact: 4.0

Affected Packages12 packages

CVEListV5microsoft/windows_server_2008x64-based Systems Service Pack 2, x64-based Systems Service Pack 2 (Server Core installation)+1
CVEListV5microsoft/windows_server_2012(Server Core installation)
CVEListV5microsoft/windows_server_2008_r2x64-based Systems Service Pack 1, x64-based Systems Service Pack 1 (Server Core installation)+1
CVEListV5microsoft/windows_server_2012_r2(Server Core installation)
CVEListV5microsoft/windows_10_serversversion 1709 (Server Core Installation), version 1803 (Server Core Installation)+1

Patches

🔴Vulnerability Details

2
GHSA
GHSA-v4r5-4mf7-8q28: An information disclosure vulnerability exists when Windows Hyper-V on a host operating system fails to properly validate input from an authenticated2022-05-13
CVEList
CVE-2018-8434: An information disclosure vulnerability exists when Windows Hyper-V on a host operating system fails to properly validate input from an authenticated2018-09-13

📋Vendor Advisories

1
Microsoft
Windows Hyper-V Information Disclosure Vulnerability2018-09-11
CVE-2018-8434 — Improper Input Validation in Microsoft | cvebase