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High · 8.4 Known exploited Public exploit CVE-2021-33739 EUVD-2021-20416GHSA-4mwq-m8xw-34mr

Microsoft DWM Core Library Elevation of Privilege Vulnerability

Published Jun 8, 2021 · Updated Oct 21, 2025 · Assigned by microsoft

Description

Microsoft DWM Core Library Elevation of Privilege Vulnerability

Affected products

VendorProductAffectedFixed
Microsoft Windows 10 Version 1909 10.0.0 – < 10.0.18363.1621 10.0.18363.1621
Microsoft Windows 10 Version 21H1 10.0.0 – < 10.0.19043.1052 10.0.19043.1052
Microsoft Windows 10 Version 2004 10.0.0 – < 10.0.19041.1052 10.0.19041.1052
Microsoft Windows Server version 2004 10.0.0 – < 10.0.19041.1052 10.0.19041.1052
Microsoft Windows 10 Version 20H2 10.0.0 – < 10.0.19042.1052 10.0.19042.1052
Microsoft Windows Server version 20H2 10.0.0 – < 10.0.19042.1052 10.0.19042.1052

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 2 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

References