Main Vulnerability Database Vulnerabilities #VU58038

Input validation error in Microsoft Windows and Windows Server - CVE-2021-42274

Published: November 9, 2021

Vulnerability identifier: #VU58038

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-42274

CWE-ID: CWE-20

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in Windows Hyper-V Discrete Device Assignment (DDA). A remote authenticated attacker on the local network can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2021-42274

Install updates from vendor's website.

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42274

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