CVE-2026-20838

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

Configuration 1 (hide)

OR cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*

History

15 Jan 2026, 15:15

Type Values Removed Values Added
CPE cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*
First Time Microsoft windows Server 2022
Microsoft
Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows Server 2025
Microsoft windows Server 2022 23h2
References () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20838 - () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20838 - Vendor Advisory

13 Jan 2026, 18:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-01-13 18:16

Updated : 2026-01-15 15:15


NVD link : CVE-2026-20838

Mitre link : CVE-2026-20838

CVE.ORG link : CVE-2026-20838


JSON object : View

Products Affected

microsoft

  • windows_server_2025
  • windows_server_2022
  • windows_11_24h2
  • windows_11_23h2
  • windows_11_25h2
  • windows_server_2022_23h2
CWE
CWE-209

Generation of Error Message Containing Sensitive Information