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Description

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

PUBLISHED Reserved 2026-02-24 | Published 2026-04-14 | Updated 2026-06-01 | Assigner microsoft




MEDIUM: 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

Problem types

CWE-20: Improper Input Validation

Product status

10.0.19044.0 (custom) before 10.0.19044.7184
affected

10.0.19045.0 (custom) before 10.0.19045.7184
affected

10.0.22631.0 (custom) before 10.0.22631.6936
affected

10.0.22631.0 (custom) before 10.0.22631.6936
affected

10.0.26100.0 (custom) before 10.0.26100.8246
affected

10.0.26200.0 (custom) before 10.0.26200.8246
affected

10.0.28000.0 (custom) before 10.0.28000.1836
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27906 (Windows Hello Security Feature Bypass Vulnerability) vendor-advisory patch

cve.org (CVE-2026-27906)

nvd.nist.gov (CVE-2026-27906)

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