CVE-2026-32091: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 10 Version 1607
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Brokering File System allows an unauthorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-32091) involves a race condition (CWE-362) in the Microsoft Brokering File System on Windows 10 Version 1607. Improper synchronization of concurrent access to shared resources can be leveraged by a local attacker to gain elevated privileges. The CVSS v3.1 base score is 8.4, indicating high severity, with attack vector local, low attack complexity, no privileges required, and no user interaction needed. Microsoft has published an official patch to remediate this vulnerability.
Potential Impact
Successful exploitation allows an unauthorized local attacker to elevate privileges on the affected Windows 10 Version 1607 system. This can lead to full system compromise with high confidentiality, integrity, and availability impacts as indicated by the CVSS score.
Mitigation Recommendations
An official fix from Microsoft is available and should be applied promptly. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32091 for patch details and deployment guidance. No additional mitigations are specified by the vendor.
CVE-2026-32091: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 10 Version 1607
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Brokering File System allows an unauthorized attacker to elevate privileges locally.
CVSS v3.1
Score 8.4high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-32091) involves a race condition (CWE-362) in the Microsoft Brokering File System on Windows 10 Version 1607. Improper synchronization of concurrent access to shared resources can be leveraged by a local attacker to gain elevated privileges. The CVSS v3.1 base score is 8.4, indicating high severity, with attack vector local, low attack complexity, no privileges required, and no user interaction needed. Microsoft has published an official patch to remediate this vulnerability.
Potential Impact
Successful exploitation allows an unauthorized local attacker to elevate privileges on the affected Windows 10 Version 1607 system. This can lead to full system compromise with high confidentiality, integrity, and availability impacts as indicated by the CVSS score.
Mitigation Recommendations
An official fix from Microsoft is available and should be applied promptly. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32091 for patch details and deployment guidance. No additional mitigations are specified by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-10T22:02:18.668Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32091","vendor":"Microsoft"}]
Threat ID: 69de7a2e82d89c981fd6bc36
Added to database: 4/14/2026, 5:32:30 PM
Last enriched: 5/19/2026, 10:44:13 AM
Last updated: 5/30/2026, 2:08:10 PM
Views: 71
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