CVE-2026-20838

MEDIUM

5.5

Description

Generation of error message containing sensitive information in Windows Kernel allows an authorized attacker to disclose information locally.

CVE Details

CVSS v3.1 Score5.5

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published1/13/2026

Last Modified1/15/2026

Sourcenvd

Honeypot Sightings0

Affected Products

microsoft:windows_11_23h2microsoft:windows_11_24h2microsoft:windows_11_25h2microsoft:windows_server_2022microsoft:windows_server_2022_23h2microsoft:windows_server_2025

Weaknesses (CWE)

CWE-209

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20838(secure@microsoft.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.