CVE-2020-16894

Windows NAT Denial of Service Vulnerability

High · published October 16, 2020

CVSS v3.1
7.7
EPSS
5%
Percentile
92.1
In the wild
Unconfirmed
What it is

<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>

The record
Technical detail
CVSS v3.1
7.7 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:P/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.04938 · 92.1th percentile
Published
2020-10-16T22:17Z
EPSS history
Timeline
  • 16 OCT 22:17Z
    Windows NAT Denial of Service Vulnerability
    cvelistv5