CVE-2026-20853

High · 7.4

CVSS

7.4

EPSS

0.3%

Published

Jan 13, 2026

CISA due date

—

The record

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows WalletService allows an unauthorized attacker to elevate privileges locally.

Affected packages

Ecosystem	Package	Introduced	Fixed