SYSTEM privilege escalation via kernel use-after-free
Published May 14, 2024 · Updated May 3, 2025
A use-after-free in the Windows Win32 Kernel Subsystem allows local users with low privileges to execute code with SYSTEM privileges. The CNA maps the flaw to CWE-416, but Microsoft has not disclosed the affected object, function, or operation that reuses freed memory. A low-privileged process must run locally; successful exploitation yields SYSTEM control without user interaction.
Summary
What happened
A use-after-free in the Windows Win32 Kernel Subsystem allows local users with low privileges to execute code with SYSTEM privileges. The CNA maps the flaw to CWE-416, but Microsoft has not disclosed the affected object, function, or operation that reuses freed memory. A low-privileged process must run locally; successful exploitation yields SYSTEM control without user interaction.
The record
- CVE
- CVE-2024-30049
- Published
- May 14, 2024
- Updated
- May 3, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-416, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 14, 2024CVE publishedPublication date reported by the CVE source.
- May 3, 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 <10.0.10240.20651
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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