CVE-2018-8438

moderate-risk
Published 2018-09-13

A denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server fails to properly validate input from a privileged user on a guest operating system, aka "Windows Hyper-V Denial of Service 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-2018-8436, CVE-2018-8437.

Do I need to act?

~
1.1% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.8/10 Medium
NETWORK / LOW complexity

Affected Products (10)

Affected Vendors

Microsoft

References (6)

Third Party Advisory http://www.securityfocus.com/bid/105249
Third Party Advisory http://www.securitytracker.com/id/1041624
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8438
Third Party Advisory http://www.securityfocus.com/bid/105249
Third Party Advisory http://www.securitytracker.com/id/1041624
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8438
44
/ 100
moderate-risk
Severity 25/34 · High
Exploitability 3/34 · Minimal
Exposure 16/34 · Moderate