CVE-2026-69398: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 10 Version 1809
Description
CVE-2026-69398 is a race condition vulnerability in the Windows Bluetooth Service on Windows 10 Version 1809 and related builds. It allows an authorized local attacker to elevate privileges due to improper synchronization when accessing shared resources. The vulnerability has a high severity rating and affects multiple specific Windows 10 builds. An official fix is available from Microsoft.
CVSS v3.1
7.0high
Affected software
Microsoft
Windows 10 Version 1809
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2019
Microsoft
Windows Server 2019 (Server Core installation)
Microsoft
Windows Server 2022
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-69398) involves a race condition (CWE-362) in the Windows Bluetooth Service of Windows 10 Version 1809 and other specified builds. Improper synchronization during concurrent execution of shared resources allows an authorized local attacker to elevate privileges. The CVSS 3.1 base score is 7.0, indicating high severity, with attack vector local, high attack complexity, low privileges required, no user interaction, and impacts on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this race condition to elevate privileges on the affected Windows 10 systems. This could lead to full system compromise, including unauthorized access to sensitive information, modification of system data, and disruption of system availability.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security updates provided by Microsoft for the affected Windows 10 versions as soon as possible to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 08/03/2026
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [object Object]
Threat ID: 6aa044f2acd9273b49fa7f90
Added to database: 09/08/2026, 17:25:06 UTC
Last enriched: 10/16/2026, 21:09:32 UTC
Last updated: 10/24/2026, 08:45:12 UTC
Views: 32
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