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MEDIUM · 6.2

CVE-2026-20818

Insertion of sensitive information into log file in Windows Kernel allows an unauthorized attacker to disclose information locally.

Vulnerability Description

Insertion of sensitive information into log file in Windows Kernel allows an unauthorized attacker to disclose information locally.

CVSS Score

6.2

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
MicrosoftWindows Server 2016< 10.0.14393.8783
MicrosoftWindows Server 2019< 10.0.17763.8276
MicrosoftWindows Server 2022< 10.0.20348.4648
MicrosoftWindows Server 2022 23H2< 10.0.25398.2092
MicrosoftWindows Server 2025< 10.0.26100.7623

Related Weaknesses (CWE)

CWE-532

References

FAQ

What is CVE-2026-20818?

CVE-2026-20818 is a vulnerability with a CVSS score of 6.2 (MEDIUM). Insertion of sensitive information into log file in Windows Kernel allows an unauthorized attacker to disclose information locally.

How severe is CVE-2026-20818?

CVE-2026-20818 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-20818?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2022 23H2, Microsoft Windows Server 2025.