Microsoft Windows NTLM Elevation of Privilege Vulnerability

A vulnerability allowing improper authentication in Windows NTLM has been identified, which could enable an authorized attacker to elevate privileges over a network. This issue affects multiple versions of Windows 10, Windows 11, and Windows Server 2025.

Impact

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

Remediation

Users can apply the security update KB5063709 or KB5063875, depending on their Windows version. Instructions for downloading this update are available through the Microsoft Update Catalog.