Local privilege escalation via kernel heap overflow
Published Oct 8, 2024 · Updated Aug 19, 2026
Heap-based buffer overflow in the kernel of Microsoft Windows 11 24H2 before 10.0.26100.2033 allows local users to elevate privileges. Microsoft identifies the weakness but has not disclosed the affected kernel routine or the unsafe operation that overruns its heap allocation. Exploitation requires existing low-privilege local access; a successful user elevates privileges within the current security boundary.
Summary
What happened
Heap-based buffer overflow in the kernel of Microsoft Windows 11 24H2 before 10.0.26100.2033 allows local users to elevate privileges. Microsoft identifies the weakness but has not disclosed the affected kernel routine or the unsafe operation that overruns its heap allocation. Exploitation requires existing low-privilege local access; a successful user elevates privileges within the current security boundary.
The record
- CVE
- CVE-2024-43527
- Published
- Oct 8, 2024
- Updated
- Aug 19, 2026
- Vendor
- Microsoft
- Product
- Windows 11, version 24H2
- Classifications
- CWE-122, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 8, 2024CVE publishedPublication date reported by the CVE source.
- Aug 19, 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=10.0.26100.0 <10.0.26100.2033
What conditions does exploitation require?
What is affected?
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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