CVE-2026-83907

Windows Hello Information Disclosure Vulnerability

State: Published
Severity: 5.5 Medium
Published: Oct 13, 2026
Updated: Oct 31, 2026
Reserved: Aug 31, 2026

Description

Exposure of sensitive system information to an unauthorized control sphere in Windows Hello allows an authorized attacker to disclose information locally.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C	microsoft

Weaknesses

CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere

Affected Products

Product	Versions
Windows 10 Version 21H2Microsoft	10.0.19044.0 to before 10.0.19044.7807Affected
Windows 10 Version 22H2Microsoft	10.0.19045.0 to before 10.0.19045.7807Affected
Windows 11 version 23H2Microsoft	10.0.22631.0 to before 10.0.22631.7652Affected
Windows 11 Version 23H2Microsoft	10.0.22631.0 to before 10.0.22631.7652Affected
Windows 11 Version 24H2Microsoft	10.0.26100.0 to before 10.0.26100.9711Affected
Windows 11 Version 25H2Microsoft	10.0.26200.0 to before 10.0.26200.9711Affected
Windows 11 version 26H1Microsoft	10.0.28000.0 to before 10.0.28000.3231Affected
Windows 11 Version 26H2Microsoft	10.0.26300.0 to before 10.0.26300.9711Affected

References

Windows Hello Information Disclosure Vulnerabilityvendor-advisorypatch

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