Vulnerability · Published Oct 16, 2020 · Assigned by microsoft
CVE-2020-16894Windows NAT Denial of Service Vulnerability
High 7.7
In plain English
A high-severity security flaw in Windows 10 Version 1607 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.9% (higher than 92% of all known vulnerabilities).
Official description
<p>A denial of service vulnerability exists when Windows Network Address Translation (NAT) 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.</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 that causes a host machine to crash.</p> <p>The update addresses the vulnerability by modifying how Windows NAT accesses the host.</p>
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1607 | 10.0.0 – before publication |
| Microsoft | Windows Server 2016 | 10.0.0 – before publication |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.0 – before publication |