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 Microsoft Windows 10 Version 1809 (build 10.0.17763.0). Improper synchronization during concurrent execution of shared resources enables an authorized local attacker to elevate privileges. The CVSS v3.1 base score is 7.0, reflecting high impact on confidentiality, integrity, and availability, with attack vector local, high attack complexity, and low privileges required. Microsoft has released an official fix to remediate this issue.
Potential Impact
An authorized local attacker can exploit this race condition vulnerability to elevate privileges on the affected system. Successful exploitation could lead to full system compromise affecting confidentiality, integrity, and availability of the system. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Microsoft has released an official patch to address this vulnerability. Users and administrators should apply the provided update from the Microsoft Security Response Center to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
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
Affected software
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 Microsoft Windows 10 Version 1809 (build 10.0.17763.0). Improper synchronization during concurrent execution of shared resources enables an authorized local attacker to elevate privileges. The CVSS v3.1 base score is 7.0, reflecting high impact on confidentiality, integrity, and availability, with attack vector local, high attack complexity, and low privileges required. Microsoft has released an official fix to remediate this issue.
Potential Impact
An authorized local attacker can exploit this race condition vulnerability to elevate privileges on the affected system. Successful exploitation could lead to full system compromise affecting confidentiality, integrity, and availability of the system. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Microsoft has released an official patch to address this vulnerability. Users and administrators should apply the provided update from the Microsoft Security Response Center to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
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: 04/14/2026, 17:32:20 UTC
Last enriched: 06/19/2026, 17:03:24 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 80
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