Main Vulnerability Database Vulnerabilities #VU46440

Input validation error in Microsoft Windows and Windows Server - CVE-2020-0890

Published: September 8, 2020 / Updated: September 11, 2020

Vulnerability identifier: #VU46440

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-2020-0890

CWE-ID: CWE-20

Exploitation vector: Local access

Exploit availability: Public exploit is 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. A local user can use a specially crafted application and perform a denial of service (DoS) attack.

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2020-0890

Install updates from vendor's website.

Links to Public Exploits and PoC-codes

Exploit #4587 - hyperv_local_dos_poc (CVE-2020-0890 | Windows Hyper-V Denial of Service Vulnerability proof-of-concept code) (September 11, 2020)

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0890

Related Security Bulletins

Multiple vulnerabilities in Microsoft Windows Hyper-V