CVE-2026-50378: 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 Key Guard allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-362, involves a race condition in Windows Key Guard on Windows 10 Version 1809 (build 10.0.17763.0). Improper synchronization when accessing shared resources enables an authorized local attacker to elevate privileges. The flaw is addressed by an official patch released by Microsoft, as documented in their security update guide.
Potential Impact
An authorized local attacker can exploit this race condition to elevate their privileges, potentially gaining higher-level access on the affected system. The CVSS score of 7.8 reflects high impact on confidentiality, integrity, and availability.
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-2026-50378 to remediate this vulnerability.
CVE-2026-50378: 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 Key Guard allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-362, involves a race condition in Windows Key Guard on Windows 10 Version 1809 (build 10.0.17763.0). Improper synchronization when accessing shared resources enables an authorized local attacker to elevate privileges. The flaw is addressed by an official patch released by Microsoft, as documented in their security update guide.
Potential Impact
An authorized local attacker can exploit this race condition to elevate their privileges, potentially gaining higher-level access on the affected system. The CVSS score of 7.8 reflects high impact on confidentiality, integrity, and availability.
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-2026-50378 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:55:14.744Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50378","vendor":"Microsoft"}]
Threat ID: 6a56769668715ace43f08e21
Added to database: 07/14/2026, 17:49:10 UTC
Last enriched: 08/13/2026, 14:43:33 UTC
Last updated: 08/25/2026, 22:52:12 UTC
Views: 47
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