CVE-2025-68623

In Microsoft DirectX End-User Runtime Web Installer 9.29.1974.0, a low-privilege user can replace an executable file during the installation process, which may result in unintended elevation of privileges. During installation, the installer runs with HIGH integrity and downloads executables and DLLs to the %TEMP% folder - writable by standard users. Subsequently, the installer executes the downloaded executable with HIGH integrity to complete the application installation. However, an attacker can replace the downloaded executable with a malicious, user-controlled executable. When the installer executes this replaced file, it runs the attacker's code with HIGH integrity. Since code running at HIGH integrity can escalate to SYSTEM level by registering and executing a service, this creates a complete privilege escalation chain from standard user to SYSTEM. NOTE: The Supplier disputes this record stating that they have determined this to be the behavior as designed.
Configurations

No configuration.

History

11 Mar 2026, 19:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 8.8
CWE CWE-284

11 Mar 2026, 17:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-03-11 17:16

Updated : 2026-03-12 21:08


NVD link : CVE-2025-68623

Mitre link : CVE-2025-68623

CVE.ORG link : CVE-2025-68623


JSON object : View

Products Affected

No product.

CWE
CWE-284

Improper Access Control