Microsoft Windows TCP/IP Stack-Based Buffer Overflow Vulnerability Allowing Privilege Escalation

A stack-based buffer overflow vulnerability has been identified in the Windows TCP/IP stack. This vulnerability allows an authorized attacker to locally elevate privileges. The issue affects several different versions and ranges of Windows, including various releases of Windows 10, Windows 11, Windows Server 2016, Windows Server 2019, and Windows Server 2022. The vulnerability arises from a buffer overflow in the TCP/IP stack, which can be exploited by an attacker with local access to the system.

Impact

Exploitation of this vulnerability could lead to unauthorized privilege escalation, allowing 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 KB5087538, KB5087537, KB5089548, KB5087420, KB5087544, and KB5087545.