Microsoft Windows Installer Privilege Escalation Vulnerability

A time-of-check time-of-use (TOCTOU) race condition vulnerability has been identified in Windows Installer. This vulnerability allows an authorized attacker to locally elevate privileges. The issue arises from a race condition where the timing of events can be manipulated, potentially leading to unauthorized access or control.

Impact

Exploitation of this vulnerability could allow an attacker to gain SYSTEM privileges.

Remediation

Users can apply the security update for this vulnerability, which is available through the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles KB5073724 for Windows 10 and KB5073723 for Windows Server 2019.