CVE-2026-20853

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

CVSS v3 7.4 HIGH

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.4 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20853	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_10_1607:::::::x64:*
	cpe:2.3:o:microsoft:windows_10_1607:::::::x86:*
	cpe:2.3:o:microsoft:windows_10_1809:::::::x64:*
	cpe:2.3:o:microsoft:windows_10_1809:::::::x86:*
	cpe:2.3:o:microsoft:windows_10_21h2::::::::
	cpe:2.3:o:microsoft:windows_10_22h2::::::::
	cpe:2.3:o:microsoft:windows_11_23h2::::::::
	cpe:2.3:o:microsoft:windows_11_24h2::::::::
	cpe:2.3:o:microsoft:windows_11_25h2::::::::

History

No history.

Information

Published : 2026-01-13 18:16

Updated : 2026-01-15 13:28

NVD link : CVE-2026-20853

Mitre link : CVE-2026-20853

CVE.ORG link : CVE-2026-20853

JSON object : View

Products Affected

microsoft

windows_10_1809
windows_11_24h2
windows_10_1607
windows_10_21h2
windows_10_22h2
windows_11_25h2
windows_11_23h2

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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