CVE-2026-83988: Windows Biometric Service Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.
Other sources
Windows Biometric Service Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker must already be authorized on the affected Windows system and able to execute code locally. The supplied vector indicates local access, low attack complexity, low privileges required, and no user interaction.
What is the likely impact of successful exploitation?
Successful exploitation can elevate the attacker's privileges on the local system. The severity vector indicates high impact to confidentiality, integrity, and availability.
Which systems should be included in triage?
Review systems running Microsoft Windows 10, Windows 11, Windows Server 2016, Windows Server 2019, Windows Server 2022, Windows Server 2025, or the Microsoft Windows Biometric Service.