CVE-2018-8439 — Improper Input Validation in Microsoft Windows 10

CWE-20 — Improper Input Validation4 documents4 sources

Severity

8.4HIGHNVD

EPSS

0.8%

top 25.61%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

Microsoft Windows 10 Microsoft Windows 10 Servers Microsoft Windows 8.1 +4 more

Timeline

PublishedSep 13

Latest updateMay 14

Description

A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a guest operating system, aka "Windows Hyper-V Remote Code Execution Vulnerability." This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-0965.

CVSS vector

CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HExploitability: 1.7 | Impact: 6.0

Affected Packages8 packages

▶CVEListV5microsoft/windows_10_serversversion 1709 (Server Core Installation), version 1803 (Server Core Installation)+1

▶CVEListV5microsoft/windows_server_2016(Server Core installation)

▶CVEListV5microsoft/windows_server_2012_r2(Server Core installation)

▶NVDmicrosoft/windowsr2, 1709, 1803+2

▶CVEListV5microsoft/windows_105 versions+4

Patches

Patch: portal.msrc.microsoft.com ↗Patch: portal.msrc.microsoft.com ↗

🔴Vulnerability Details

GHSA

GHSA-wq5x-2crp-vhr7: A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a gu↗2022-05-14

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CVEList

CVE-2018-8439: A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a gu↗2018-09-13

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📋Vendor Advisories

Microsoft

Windows Hyper-V Remote Code Execution Vulnerability↗2018-09-11

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