Input validation error in Microsoft Windows and Windows Server - CVE-2020-1243
Published: October 13, 2020
Vulnerability identifier: #VU47563
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-1243
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to the Microsoft Hyper-V on a host server fails to properly validate specific malicious data from a user on a guest operating system. A local user can use a specially crafted application and perform a denial of service (DoS) attack.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2020-1243
Install updates from vendor's website.