Main Vulnerability Database Vulnerabilities #VU54727

Input validation error in Microsoft Windows and Windows Server - CVE-2021-33755

Published: July 13, 2021

Vulnerability identifier: #VU54727

CSH Severity: Medium

CVSS v4: 6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-33755

CWE-ID: CWE-20

Exploitation vector: Remote access

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 the Windows Hyper-V. A remote authenticated attacker 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-2021-33755

Install updates from vendor's website.

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33755

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