CVE-2026-20818

Summary

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

Affected Software

VendorProductVersion RangeStatus
MicrosoftWindows Server 201610.0.14393.0 < 10.0.14393.8783affected
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0 < 10.0.14393.8783affected
MicrosoftWindows Server 201910.0.17763.0 < 10.0.17763.8276affected
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0 < 10.0.17763.8276affected
MicrosoftWindows Server 202210.0.20348.0 < 10.0.20348.4648affected
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation)10.0.25398.0 < 10.0.25398.2092affected
MicrosoftWindows Server 202510.0.26100.0 < 10.0.26100.32230affected
MicrosoftWindows Server 2025 (Server Core installation)10.0.26100.0 < 10.0.26100.32230affected

Weaknesses

  • CWE-532: CWE-532: Insertion of Sensitive Information into Log File

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References