CVE-2026-21222

medium Microsoft
CVSS v3 Base Score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
EPSS Score
0.0%
Exploitation probability in 30 days
Top 91% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
None
Availability
None
Published: February 10, 2026 (93 days ago)
Last Modified: March 13, 2026
Vendor: Microsoft
Source: MITRE

Description

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

CWE

CWE-532

Affected Products

Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809Microsoft Windows 10 Version 21H2Microsoft Windows 10 Version 22H2Microsoft Windows 11 version 22H3Microsoft Windows 11 Version 23H2Microsoft Windows 11 Version 24H2Microsoft Windows Server 2012 R2Microsoft Windows Server 2012 R2 (Server Core installation)Microsoft Windows Server 2016

References

🔗 msrc.microsoft.com