CVE-2026-45597: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 11 version 23H2
Concurrent execution using shared resource with improper synchronization ('race condition') in UI Automation Manager (uiamanager.dll) allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-45597) involves a race condition (CWE-362) in the UI Automation Manager (uiamanager.dll) of Microsoft Windows 11 version 23H2 (build 10.0.22631.0). The flaw arises from improper synchronization during concurrent execution using shared resources, enabling a local attacker with some authorization to elevate privileges. The CVSS 3.1 base score is 7.0, indicating high severity, with attack vector local, high attack complexity, low privileges required, no user interaction, and impacts on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this race condition vulnerability to elevate their privileges on the affected Windows 11 system. This could lead to full control over the affected system, compromising confidentiality, integrity, and availability of the system resources.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is recommended to apply the security update provided by Microsoft as detailed in their advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45597 to remediate this issue.
CVE-2026-45597: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 11 version 23H2
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in UI Automation Manager (uiamanager.dll) allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.0high
Affected software
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2022
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-45597) involves a race condition (CWE-362) in the UI Automation Manager (uiamanager.dll) of Microsoft Windows 11 version 23H2 (build 10.0.22631.0). The flaw arises from improper synchronization during concurrent execution using shared resources, enabling a local attacker with some authorization to elevate privileges. The CVSS 3.1 base score is 7.0, indicating high severity, with attack vector local, high attack complexity, low privileges required, no user interaction, and impacts on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this race condition vulnerability to elevate their privileges on the affected Windows 11 system. This could lead to full control over the affected system, compromising confidentiality, integrity, and availability of the system resources.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is recommended to apply the security update provided by Microsoft as detailed in their advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45597 to remediate this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T19:55:45.730Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45597","vendor":"Microsoft"}]
Threat ID: 6a284ce18dd33fbd85664e0c
Added to database: 06/09/2026, 17:26:57 UTC
Last enriched: 08/14/2026, 13:40:04 UTC
Last updated: 09/14/2026, 10:01:31 UTC
Views: 99
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