Local privilege escalation via Win32k heap overflow
Published Jun 11, 2024 · Updated Aug 10, 2026
Heap-based buffer overflow in Microsoft Win32k allows local users with low privileges to elevate access on affected Windows releases. The CNA identifies a heap-based buffer overflow in Win32k but does not disclose the affected function, input, or faulty bounds operation. Successful exploitation requires local low-privilege access and grants elevated privileges without user interaction.
Summary
What happened
Heap-based buffer overflow in Microsoft Win32k allows local users with low privileges to elevate access on affected Windows releases. The CNA identifies a heap-based buffer overflow in Win32k but does not disclose the affected function, input, or faulty bounds operation. Successful exploitation requires local low-privilege access and grants elevated privileges without user interaction.
The record
- CVE
- CVE-2024-30091
- Published
- Jun 11, 2024
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-122, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 11, 2024CVE publishedPublication date reported by the CVE source.
- Aug 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.10240.0 <10.0.10240.20680
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo