Vulnerability · Published Sep 11, 2020 · Assigned by microsoft
CVE-2020-0890Windows Hyper-V Denial of Service Vulnerability
Medium 6.5
In plain English
A medium-severity security flaw in Windows 10 Version 1803 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.8% (higher than 87% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
<p>A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate specific malicious data from a user on a guest operating system.</p> <p>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.</p> <p>The security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to handle these requests.</p>
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1803 | 10.0.0 – before publication |
| Microsoft | Windows 10 Version 1809 | 10.0.0 – before publication |
| Microsoft | Windows Server 2019 | 10.0.0 – before publication |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.0 – before publication |
| Microsoft | Windows 10 Version 1909 | 10.0.0 – before publication |
| Microsoft | Windows Server, version 1909 (Server Core installation) | 10.0.0 – before publication |
| Microsoft | Windows 10 Version 1903 for 32-bit Systems | 10.0.0 – before publication |
| Microsoft | Windows 10 Version 1903 for x64-based Systems | 10.0.0 – before publication |
| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | 10.0.0 – before publication |
| Microsoft | Windows Server, version 1903 (Server Core installation) | 10.0.0 – before publication |
| Microsoft | Windows 10 Version 2004 | 10.0.0 – before publication |
| Microsoft | Windows Server version 2004 | 10.0.0 – before publication |