CVE-2026-69388: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
Description
CVE-2026-69388 is a use-after-free vulnerability in the Windows Bluetooth Service affecting Windows 10 Version 1809 and later builds up to specific patched versions. This flaw allows an authorized local attacker to elevate privileges. The vulnerability has a high severity rating and has been officially fixed by Microsoft.
CVSS v3.1
Score 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
CVE-2026-69388 is a use-after-free vulnerability (CWE-416) in the Windows Bluetooth Service component of Microsoft Windows 10 Version 1809 and subsequent builds. An authorized attacker with local access can exploit this flaw to elevate privileges on the affected system. The vulnerability has a CVSS 3.1 base score of 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 released official fixes for affected versions, mitigating the vulnerability.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher system rights. This could lead to full system compromise depending on the privileges obtained. The vulnerability affects confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Microsoft has released official fixes for this vulnerability. Users and administrators should apply the security updates provided by Microsoft for the affected Windows 10 versions as listed in the vendor advisory. No additional mitigation steps are required beyond applying the official patches.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T20:54:04.487Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69388","vendor":"Microsoft"}]
Threat ID: 6aa044efacd9273b49fa7f32
Added to database: 09/08/2026, 17:25:03 UTC
Last enriched: 10/16/2026, 21:08:34 UTC
Last updated: 10/22/2026, 01:15:25 UTC
Views: 23
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