CVE-2026-20853
Unknown
Unknown - Not Provided
Race Condition in Windows WalletService Enables Local Privilege Escalation
Publication date: 2026-01-13
Last updated on: 2026-01-13
Assigner: Microsoft Corporation
Description
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows WalletService allows an unauthorized attacker to elevate privileges locally.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | windows_walletservice | * |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-362 | The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a race condition in the Windows WalletService where concurrent execution using a shared resource lacks proper synchronization. This flaw allows an unauthorized local attacker to elevate their privileges on the affected system. [1]
How can this vulnerability impact me? :
An attacker exploiting this vulnerability can gain elevated privileges locally, potentially allowing them to perform actions that require higher permissions, which could compromise system security and integrity. [1]
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