Local privilege escalation via Win32k use-after-free
Published Apr 11, 2023 · Updated Jan 23, 2025
Use-after-free in Win32k in Microsoft Windows 11 version 22H2 allows local users to elevate privileges through a local attack. Microsoft identifies the weakness class but has not published the Win32k object, trigger, or lifetime operation that leaves freed memory accessible. Exploitation requires low-privileged local access, high-complexity conditions, and no user interaction, and successful exploitation grants elevated control of the system.
Summary
What happened
Use-after-free in Win32k in Microsoft Windows 11 version 22H2 allows local users to elevate privileges through a local attack. Microsoft identifies the weakness class but has not published the Win32k object, trigger, or lifetime operation that leaves freed memory accessible. Exploitation requires low-privileged local access, high-complexity conditions, and no user interaction, and successful exploitation grants elevated control of the system.
The record
- CVE
- CVE-2023-24914
- Published
- Apr 11, 2023
- Updated
- Jan 23, 2025
- Vendor
- Microsoft
- Product
- Windows 11, version 22H2
- Classifications
- CWE-416, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 11, 2023CVE publishedPublication date reported by the CVE source.
- Jan 23, 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=10.0.22621.0 <10.0.22621.1555
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.
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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