CVE-2026-27926: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 10 Version 1809
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves a race condition (CWE-362) in the Windows Cloud Files Mini Filter Driver component of Windows 10 Version 1809 (build 10.0.17763.0). Improper synchronization during concurrent execution of shared resources can be exploited by an authorized local attacker to gain elevated privileges. The issue is addressed by an official patch provided by Microsoft, as documented in their security update guide.
Potential Impact
An authorized local attacker can exploit this race condition to elevate their privileges on the affected system. The CVSS score of 7 indicates high impact on confidentiality, integrity, and availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update referenced in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27926 to remediate this vulnerability.
CVE-2026-27926: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 10 Version 1809
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.0high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a race condition (CWE-362) in the Windows Cloud Files Mini Filter Driver component of Windows 10 Version 1809 (build 10.0.17763.0). Improper synchronization during concurrent execution of shared resources can be exploited by an authorized local attacker to gain elevated privileges. The issue is addressed by an official patch provided by Microsoft, as documented in their security update guide.
Potential Impact
An authorized local attacker can exploit this race condition to elevate their privileges on the affected system. The CVSS score of 7 indicates high impact on confidentiality, integrity, and availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update referenced in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27926 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-24T21:35:49.688Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27926","vendor":"Microsoft"}]
Threat ID: 69de7a2482d89c981fd6b9ff
Added to database: 4/14/2026, 5:32:20 PM
Last enriched: 5/19/2026, 10:39:12 AM
Last updated: 5/31/2026, 5:33:40 AM
Views: 41
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