CVE-2026-32164
Received Received - Intake
Race Condition in Windows UI Core Enables Local Privilege Escalation

Publication date: 2026-04-14

Last updated on: 2026-04-20

Assigner: Microsoft Corporation

Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows User Interface Core allows an authorized attacker to elevate privileges locally.
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Meta Information
Published
2026-04-14
Last Modified
2026-04-20
Generated
2026-06-16
AI Q&A
2026-04-14
EPSS Evaluated
2026-06-15
NVD
CVE-2026-32164
EUVD
EUVD-2026-22556
Affected Vendors & Products
Showing 23 associated CPEs
Vendor Product Version / Range
microsoft windows_10_1607 to 10.0.14393.9060 (exc)
microsoft windows_10_1607 to 10.0.14393.9060 (exc)
microsoft windows_10_1809 to 10.0.17763.8644 (exc)
microsoft windows_10_1809 to 10.0.17763.8644 (exc)
microsoft windows_10_21h2 to 10.0.19044.7184 (exc)
microsoft windows_10_21h2 to 10.0.19044.7184 (exc)
microsoft windows_10_21h2 to 10.0.19044.7184 (exc)
microsoft windows_10_22h2 to 10.0.19045.7184 (exc)
microsoft windows_10_22h2 to 10.0.19045.7184 (exc)
microsoft windows_10_22h2 to 10.0.19045.7184 (exc)
microsoft windows_11_23h2 to 10.0.22631.6936 (exc)
microsoft windows_11_23h2 to 10.0.22631.6936 (exc)
microsoft windows_11_24h2 to 10.0.26100.8246 (exc)
microsoft windows_11_24h2 to 10.0.26100.8246 (exc)
microsoft windows_11_25h2 to 10.0.26200.8246 (exc)
microsoft windows_11_25h2 to 10.0.26200.8246 (exc)
microsoft windows_11_26h1 to 10.0.28000.1836 (exc)
microsoft windows_11_26h1 to 10.0.28000.1836 (exc)
microsoft windows_server_2016 to 10.0.14393.9060 (exc)
microsoft windows_server_2019 to 10.0.17763.8644 (exc)
microsoft windows_server_2022 to 10.0.20348.5020 (exc)
microsoft windows_server_2022_23h2 to 10.0.25398.2274 (exc)
microsoft windows_server_2025 to 10.0.26100.32690 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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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.
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Compliance Impact

This vulnerability allows an authorized attacker to elevate privileges locally by exploiting a race condition in the Windows User Interface Core.

Elevation of privilege vulnerabilities can potentially lead to unauthorized access to sensitive data or systems, which may impact compliance with standards and regulations such as GDPR and HIPAA that require strict access controls and protection of personal or health information.

However, the provided information does not specify direct effects or assessments related to compliance with these standards.

Executive Summary

This vulnerability is a race condition in the Windows User Interface Core component. It occurs due to concurrent execution using a shared resource without proper synchronization. An authorized attacker who has local access can exploit this flaw to elevate their privileges on the affected system.

Impact Analysis

Exploiting this vulnerability allows an attacker with local access to elevate their privileges. This means the attacker could gain higher-level permissions than originally granted, potentially leading to unauthorized access to sensitive data, modification of system settings, installation of malicious software, or disruption of system operations.

Mitigation Strategies

To mitigate this vulnerability, ensure that your Windows systems are updated with the latest security patches provided by Microsoft.

Since the vulnerability involves a race condition in the Windows User Interface Core allowing local privilege escalation, restricting local user access and applying principle of least privilege can help reduce risk until patches are applied.

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