Description
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. An attacker who successfully exploited the vulnerability could cause the host server to crash. To exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual machine, could run a specially crafted application that causes a host machine to crash. The update addresses the vulnerability by modifying how virtual machines access the Hyper-V Network Switch.
Metrics
CVSS 3.1 5.8/10
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1703 | >= 10.0.0, < publication |
| Microsoft | Windows 10 Version 1803 | >= 10.0.0, < publication |
| Microsoft | Windows Server, version 1803 (Server Core Installation) | >= 10.0.0, < publication |
| Microsoft | Windows 10 Version 1809 | >= 10.0.0, < publication |
| Microsoft | Windows Server 2019 | >= 10.0.0, < publication |
| Microsoft | Windows Server 2019 (Server Core installation) | >= 10.0.0, < publication |
| Microsoft | Windows 10 Version 1709 | >= 10.0.0, < publication |
| Microsoft | Windows 10 Version 1507 | >= 10.0.0, < publication |
| Microsoft | Windows 10 Version 1607 | >= 10.0.0, < publication |
| Microsoft | Windows Server 2016 | >= 10.0.0, < publication |
| Microsoft | Windows Server 2016 (Server Core installation) | >= 10.0.0, < publication |
| Microsoft | Windows 8.1 | >= 6.3.0, < publication |
| Microsoft | Windows Server 2012 | >= 6.2.0, < publication |
| Microsoft | Windows Server 2012 (Server Core installation) | >= 6.2.0, < publication |
| Microsoft | Windows Server 2012 R2 | >= 6.3.0, < publication |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | >= 6.3.0, < publication |
| Microsoft | Windows Server, version 1903 (Server Core installation) | >= 10.0.0, < publication |
| Microsoft | Windows 10 Version 1903 for x64-based Systems | >= 10.0.0, < publication |
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0718Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0718Patch, Vendor Advisory
Timeline
- Published
- Aug 14, 2019
- Last modified
- Jun 17, 2026
- NVD status
- Modified