Main Vulnerability Database Vulnerabilities #VU53902

Improper Privilege Management in Microsoft Windows and Windows Server - CVE-2021-33739

Published: June 8, 2021 / Updated: December 22, 2021

Vulnerability identifier: #VU53902

CSH Severity: Critical

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-33739

CWE-ID: CWE-269

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

Vulnerability details

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper privilege management within the Microsoft DWM Core Library. A remote attacker can trick the victim to run a specially crafted executable or script and execute arbitrary code on the system.

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2021-33739

Install updates from vendor's website.

Links to Public Exploits and PoC-codes

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33739

Related Security Bulletins

Remote code execution in Microsoft DWM Core Library