CVE-2018-8439

moderate-risk
Published 2018-09-13

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.

Do I need to act?

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0.82% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.4/10 High
ADJACENT_NETWORK / LOW complexity

Affected Products (11)

Affected Vendors

Microsoft

References (6)

Third Party Advisory http://www.securityfocus.com/bid/105233
Third Party Advisory http://www.securitytracker.com/id/1041624
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8439
Third Party Advisory http://www.securityfocus.com/bid/105233
Third Party Advisory http://www.securitytracker.com/id/1041624
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8439
45
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 3/34 · Minimal
Exposure 16/34 · Moderate