Feb 2026: Windows Kernel Information Disclosure Vulnerability
CVE-2026-21222 Published on February 10, 2026
Windows Kernel Information Disclosure Vulnerability
Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally.
Weakness Type
Insertion of Sensitive Information into Log File
Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information.
Products Associated with CVE-2026-21222
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Affected Versions
Microsoft Windows 10 Version 1607:- Version 10.0.14393.0 and below 10.0.14393.8868 is affected.
- Version 10.0.17763.0 and below 10.0.17763.8389 is affected.
- Version 10.0.19044.0 and below 10.0.19044.6937 is affected.
- Version 10.0.19045.0 and below 10.0.19045.6937 is affected.
- Version 10.0.22631.0 and below 10.0.22631.6649 is affected.
- Version 10.0.22631.0 and below 10.0.22631.6649 is affected.
- Version 10.0.26100.0 and below 10.0.26100.7840 is affected.
- Version 6.3.9600.0 and below 6.3.9600.23022 is affected.
- Version 6.3.9600.0 and below 6.3.9600.23022 is affected.
- Version 10.0.14393.0 and below 10.0.14393.8868 is affected.
- Version 10.0.14393.0 and below 10.0.14393.8868 is affected.
- Version 10.0.17763.0 and below 10.0.17763.8389 is affected.
- Version 10.0.17763.0 and below 10.0.17763.8389 is affected.
- Version 10.0.20348.0 and below 10.0.20348.4773 is affected.
- Version 10.0.25398.0 and below 10.0.25398.2149 is affected.
- Version 10.0.26100.0 and below 10.0.26100.32370 is affected.
- Version 10.0.26100.0 and below 10.0.26100.32370 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.