Microsoft Patches Repeated Elevation-of-Privilege Flaws in DWM Core Library

Microsoft has issued security advisories for multiple Desktop Window Manager (DWM) Core Library elevation-of-privilege vulnerabilities affecting Windows, including CVE-2022-21902, CVE-2022-41096, CVE-2024-43629, CVE-2025-21304, and CVE-2025-53801. The flaws were published across several update cycles through the Microsoft Security Response Center, indicating a recurring security issue in the component responsible for Windows desktop composition and rendering.

The advisories identify the vulnerabilities as elevation of privilege issues in the Windows or Microsoft DWM Core Library, meaning successful exploitation could allow an attacker with existing access to gain higher privileges on a targeted system. Microsoft released fixes through its Security Update Guide and related portal advisories, making patching a priority for organizations that rely on Windows endpoints and servers where the DWM component is present.