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CVE Number Vulnerability Product Severity Date
CVE-2021-34439 Microsoft Windows Media Foundation Remote Code Execution Vulnerability Windows 10 Critical 21-07-2021

Technical Information

Brief overview of the risk:

A memory corruption vulnerability exists when Windows Media Foundation improperly handles objects in memory. An attacker who successfully exploited the vulnerability could install programs; view, change, or delete data; or create new accounts with full user rights.
There are multiple ways an attacker could exploit the vulnerability, such as by convincing a user to open a specially crafted document, or by convincing a user to visit a malicious webpage.
This security update addresses the vulnerability by correcting how Windows Media Foundation handles objects in memory.

Further information on this vulnerability is available at : CVE-2021-34439

Affected Software

Windows 10 for 32-bit Systems
Windows 10 for x64-based Systems
Windows 10 Version 1607 for 32-bit Systems
Windows 10 Version 1607 for x64-based Systems
Windows Server 2016
Windows Server 2016 (Server Core installation)