Microsoft Windows Telephony Service Heap-Based Buffer Overflow Vulnerability Allowing Privilege Escalation

A heap-based buffer overflow vulnerability has been identified in the Windows Telephony Service. This vulnerability allows an unauthorized attacker to elevate privileges by sending specially crafted malicious traffic to a vulnerable server over an adjacent network. The issue affects several different versions and ranges of Windows, including various editions of Windows Server, Windows 10, and Windows 11.

Impact

Exploitation of this vulnerability could lead to unauthorized privilege escalation, allowing an attacker to gain SYSTEM privileges on the affected machine.

Remediation

Users can download the security update for this vulnerability through the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles KB5078752, KB5078885, KB5078766, KB5078774, KB5078938, and KB5079473.