CVE-2026-27906 MEDIUM

CVE-2026-27906: Windows Hello Security Feature Bypass Vulnerability

Vendor Microsoft
Product Windows 10 Version 21H2
Weakness CWE-20 · Input validation
Published April 14, 2026
Last update June 1, 2026
View on NVD All CVEs

CVSS base score

4.4/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Improper input validation in Windows Hello allows an authorized attacker to bypass a security feature locally.

Key dates

02Disclosure timeline

April 14, 2026 CVE published
June 1, 2026 Record updated