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 when accessing shared resources allows an authorized local attacker to execute concurrent operations that can lead to privilege escalation. The CVSS 3.1 vector indicates the attack requires local access with high attack complexity and low privileges but no user interaction. The impact includes high confidentiality, integrity, and availability consequences. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this race condition to elevate their privileges on the affected Windows 10 system. This could lead to full system compromise, affecting confidentiality, integrity, and availability of the system. There are no known exploits in the wild at this time.
Mitigation Recommendations
Microsoft has released an official patch to remediate this vulnerability. It is recommended to apply the security update available from the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27926 to fully mitigate the risk.
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.
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 when accessing shared resources allows an authorized local attacker to execute concurrent operations that can lead to privilege escalation. The CVSS 3.1 vector indicates the attack requires local access with high attack complexity and low privileges but no user interaction. The impact includes high confidentiality, integrity, and availability consequences. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this race condition to elevate their privileges on the affected Windows 10 system. This could lead to full system compromise, affecting confidentiality, integrity, and availability of the system. There are no known exploits in the wild at this time.
Mitigation Recommendations
Microsoft has released an official patch to remediate this vulnerability. It is recommended to apply the security update available from the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27926 to fully mitigate the risk.
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: 4/14/2026, 6:47:20 PM
Last updated: 4/15/2026, 6:08:12 AM
Views: 4
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