Inclusion of Sensitive Information in Log Files in Windows Server - CVE-2026-20818
Published: January 14, 2026
Vulnerability identifier: #VU121448
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-20818
CWE-ID: CWE-532
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to gain access to sensitive information.
The vulnerability exists due to software stores sensitive information into log files in Windows Kernel. A local attacker can read the log files and gain access to sensitive data.
Affected software
Windows Server
How to mitigate CVE-2026-20818
Install updates from vendor's website.
Windows Server - addressed in versions 2016 10.0.14393.8783, 2019 10.0.17763.8276, 2022 23H2 10.0.25398.2092, 2022 10.0.20348.4648, 2025 10.0.26100.7623