CVE-2026-83954: 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 to access the affected Windows system and exploit the issue locally. The provided information does not indicate that remote exploitation or user interaction is required.
What is the potential impact of successful exploitation?
Successful exploitation allows local elevation of privilege and is rated as having high confidentiality, integrity, and availability impact. An attacker could gain privileges beyond those assigned to their existing authorized account.
Which systems are identified as affected?
The affected software list includes Microsoft Windows 10, Windows 11, Windows Server 2016, Windows Server 2019, Windows Server 2022, and Windows Server 2025.