Local privilege escalation via Bluetooth race condition
Published Sep 8, 2026 · Updated Sep 9, 2026
Privilege escalation in Microsoft Windows Bluetooth Service allows local users with low privileges to obtain elevated privileges. A race condition permits concurrent access to a shared resource and can trigger a double free; Microsoft has not disclosed the affected function or object. Exploitation requires local low-privileged access and a high-complexity timing window, and success elevates privileges on the same Windows host.
Summary
What happened
Privilege escalation in Microsoft Windows Bluetooth Service allows local users with low privileges to obtain elevated privileges. A race condition permits concurrent access to a shared resource and can trigger a double free; Microsoft has not disclosed the affected function or object. Exploitation requires local low-privileged access and a high-complexity timing window, and success elevates privileges on the same Windows host.
The record
- CVE
- CVE-2026-69398
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-415, CWE-362, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.17763.0 <10.0.17763.9245
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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