CVE-2026-20852 HIGH

CVE-2026-20852: Windows Hello Tampering Vulnerability

Vendor Microsoft
Product Windows 10 Version 1607
Weakness CWE-266
Published January 13, 2026
Last update April 1, 2026
View on NVD All CVEs

CVSS base score

7.7/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C

What the vulnerability does

01Description

Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering locally.

Key dates

02Disclosure timeline

January 13, 2026 CVE published
April 1, 2026 Record updated