CVE-2020-16891

Windows Hyper-V Remote Code Execution Vulnerability

High · published October 16, 2020

CVSS v3.1
8.8
EPSS
1%
Percentile
60.7
In the wild
Unconfirmed
What it is

<p>A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a guest operating system. To exploit the vulnerability, an attacker could run a specially crafted application on a guest operating system that could cause the Hyper-V host operating system to execute arbitrary code.</p>

<p>An attacker who successfully exploited the vulnerability could execute arbitrary code on the host operating system.</p>

<p>The security update addresses the vulnerability by correcting how Hyper-V validates guest operating system user input.</p>

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00945 · 60.7th percentile
Published
2020-10-16T22:17Z
EPSS history
Timeline
  • 16 OCT 22:17Z
    Windows Hyper-V Remote Code Execution Vulnerability
    cvelistv5