CVE-2018-8438

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.

• CWE-20

• https://www.securityfocus.com/bid/105249Third Party Advisory, VDB Entry
• https://www.securitytracker.com/id/1041624Third Party Advisory, VDB Entry
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8438Patch, Vendor Advisory
• https://www.securityfocus.com/bid/105249Third Party Advisory, VDB Entry
• https://www.securitytracker.com/id/1041624Third Party Advisory, VDB Entry
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8438Patch, Vendor Advisory

Published

Sep 13, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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