Local privilege escalation via improperly locked memory
Published Apr 8, 2025 · Updated Aug 10, 2026
Sensitive data storage in Win32K-GRFX in Microsoft Windows allows local users with low privileges to elevate privileges locally. Microsoft identifies improperly locked memory as the mechanism but has not disclosed the affected routine, stored data, or incorrect locking operation. Exploitation requires local low-privilege access and high-complexity conditions; success elevates the attacker's privileges and can compromise the system.
Summary
What happened
Sensitive data storage in Win32K-GRFX in Microsoft Windows allows local users with low privileges to elevate privileges locally. Microsoft identifies improperly locked memory as the mechanism but has not disclosed the affected routine, stored data, or incorrect locking operation. Exploitation requires local low-privilege access and high-complexity conditions; success elevates the attacker's privileges and can compromise the system.
The record
- CVE
- CVE-2025-27732
- Published
- Apr 8, 2025
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-591, CWE-667, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 8, 2025CVE 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
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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 <10.0.10240.20978
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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