Jan 2026: Windows Hello Tampering Vulnerability
CVE-2026-20852 Published on January 13, 2026
Windows Hello Tampering Vulnerability
Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering locally.
Weakness Type
Incorrect Privilege Assignment
A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.
Products Associated with CVE-2026-20852
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Affected Versions
Microsoft Windows 10 Version 1607:- Version 10.0.14393.0 and below 10.0.14393.8783 is affected.
- Version 10.0.17763.0 and below 10.0.17763.8276 is affected.
- Version 10.0.19044.0 and below 10.0.19044.6809 is affected.
- Version 10.0.19045.0 and below 10.0.19045.6809 is affected.
- Version 10.0.22631.0 and below 10.0.22631.6491 is affected.
- Version 10.0.22631.0 and below 10.0.22631.6491 is affected.
- Version 10.0.26100.0 and below 10.0.26100.7623 is affected.
- Version 10.0.26200.0 and below 10.0.26200.7623 is affected.
- Version 10.0.14393.0 and below 10.0.14393.8783 is affected.
- Version 10.0.14393.0 and below 10.0.14393.8783 is affected.
- Version 10.0.17763.0 and below 10.0.17763.8276 is affected.
- Version 10.0.17763.0 and below 10.0.17763.8276 is affected.
- Version 10.0.20348.0 and below 10.0.20348.4648 is affected.
- Version 10.0.25398.0 and below 10.0.25398.2092 is affected.
- Version 10.0.26100.0 and below 10.0.26100.32230 is affected.
- Version 10.0.26100.0 and below 10.0.26100.32230 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.