CVE-2020-16894

HIGH

Windows 10 and Windows Server 2016 - Denial of Service via Guest OS NAT Input

Title source: llm
STIX 2.1

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>

References (1)

Core 1
Core References

Scores

CVSS v3 7.7
EPSS 0.0494
EPSS Percentile 91.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (2)
microsoft/windows_10 1607
microsoft/windows_server_2016
Published Oct 16, 2020
Tracked Since Feb 18, 2026