Local privilege escalation via improperly locked memory
Published Jan 10, 2023 · Updated Jan 1, 2025
Elevation of privilege in the Windows Bluetooth driver in affected Windows 8.1, 10, and 11 builds allows local users to gain privileges. Microsoft identifies improperly locked memory containing sensitive data but has not disclosed the affected driver routine or its incorrect operation on attacker-controlled input. Exploitation requires local access, low privileges, no user interaction, and a high-complexity condition; success compromises the host.
Summary
What happened
Elevation of privilege in the Windows Bluetooth driver in affected Windows 8.1, 10, and 11 builds allows local users to gain privileges. Microsoft identifies improperly locked memory containing sensitive data but has not disclosed the affected driver routine or its incorrect operation on attacker-controlled input. Exploitation requires local access, low privileges, no user interaction, and a high-complexity condition; success compromises the host.
The record
- CVE
- CVE-2023-21739
- Published
- Jan 10, 2023
- Updated
- Jan 1, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-591, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 10, 2023CVE publishedPublication date reported by the CVE source.
- Jan 1, 2025Record 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=10.0.10240.0 <10.0.10240.19685
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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