#VU121261 Race condition in Windows - CVE-2026-20853

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Main Vulnerability Database Vulnerabilities #VU121261

#VU121261 Race condition in Windows - CVE-2026-20853

Published: January 13, 2026


Vulnerability identifier: #VU121261
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-20853
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Windows
Software vendor:
Microsoft

Description

The vulnerability allows a local attacker to escalate privileges on the system.

The vulnerability exists due to a race condition in Windows WalletService. A local attacker can exploit the race and escalate privileges on the system.


Remediation

Install updates from vendor's website.

External links