Privilege Escalation Vulnerability in Microsoft DirectX End-User Runtime Web Installer

CVE-2025-68623

What is CVE-2025-68623?

In the Microsoft DirectX End-User Runtime Web Installer, a low-privilege user can exploit a flaw during installation that allows for the replacement of an executable file. The installer operates with high integrity, downloading executables and DLLs to a temporary folder accessible to standard users. This condition enables an attacker to substitute the original executable with a malicious version. Upon execution by the installer with high integrity privileges, the malicious code can run at elevated levels, facilitating a complete escalation from standard user to SYSTEM privileges. This vulnerability raises significant security concerns due to its potential impact on system integrity and control.

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