Unrated severityNVD Advisory· Published Jan 13, 2026· Updated Apr 1, 2026
Windows Kernel Information Disclosure Vulnerability
CVE-2026-20818
Description
Insertion of sensitive information into log file in Windows Kernel allows an unauthorized attacker to disclose information locally.
Affected products
8- Range: 10.0.14393.0
- Microsoft/Windows Server 2016 (Server Core installation)v5Range: 10.0.14393.0
- Range: 10.0.17763.0
- Microsoft/Windows Server 2019 (Server Core installation)v5Range: 10.0.17763.0
- Range: 10.0.20348.0
- Microsoft/Windows Server 2022, 23H2 Edition (Server Core installation)v5Range: 10.0.25398.0
- Range: 10.0.26100.0
- Microsoft/Windows Server 2025 (Server Core installation)v5Range: 10.0.26100.0
Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20818mitrevendor-advisorypatch
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