CVE-2026-20853
Published: Jan 13, 2026
Modified: Apr 1, 2026
CVSS v3.1
7.4
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows WalletService allows an unauthorized attacker to elevate privileges locally.
| Vendor | Product | Versions |
|---|---|---|
Microsoft | Windows 10 Version 1607 | affected 10.0.14393.0 - < 10.0.14393.8783 |
Microsoft | Windows 10 Version 1809 | affected 10.0.17763.0 - < 10.0.17763.8276 |
Microsoft | Windows 10 Version 21H2 | affected 10.0.19044.0 - < 10.0.19044.6809 |
Microsoft | Windows 10 Version 22H2 | affected 10.0.19045.0 - < 10.0.19045.6809 |
Microsoft | Windows 11 version 22H3 | affected 10.0.22631.0 - < 10.0.22631.6491 |
Microsoft | Windows 11 Version 23H2 | affected 10.0.22631.0 - < 10.0.22631.6491 |
Microsoft | Windows 11 Version 24H2 | affected 10.0.26100.0 - < 10.0.26100.7623 |
Microsoft | Windows 11 Version 25H2 | affected 10.0.26200.0 - < 10.0.26200.7623 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now