7.8
CVSSv3

CVE-2020-1243

Published: 16/10/2020 Updated: 31/12/2023
CVSS v2 Base Score: 4.6 | Impact Score: 6.4 | Exploitability Score: 3.9
CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8
VMScore: 409
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Summary

<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>

Vulnerability Trend

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microsoft windows server 2016 -

microsoft windows 10 1607

microsoft windows 10 1709

microsoft windows 10 1803

microsoft windows server 2019 -

microsoft windows 10 1809

microsoft windows server 2016 1903

microsoft windows 10 1903

microsoft windows server 2016 1909

microsoft windows server 2016 2004

microsoft windows 10 2004