Local kernel-memory disclosure via sensitive log entries
Published Jan 14, 2025 · Updated Jun 9, 2026
Information disclosure in Microsoft Windows Kernel Memory allows local users with low privileges to read sensitive kernel memory data. Microsoft maps the flaw to sensitive information written into a log file, but does not disclose the responsible routine or log. Exploitation requires local low-privileged access and exposes data without reported modification or service interruption.
Summary
What happened
Information disclosure in Microsoft Windows Kernel Memory allows local users with low privileges to read sensitive kernel memory data. Microsoft maps the flaw to sensitive information written into a log file, but does not disclose the responsible routine or log. Exploitation requires local low-privileged access and exposes data without reported modification or service interruption.
The record
- CVE
- CVE-2025-21317
- Published
- Jan 14, 2025
- Updated
- Jun 9, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2025 (Server Core installation)
- Classifications
- CWE-532, CAPEC-215, T1005
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 14, 2025CVE publishedPublication date reported by the CVE source.
- Jun 9, 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 <10.0.26100.2894
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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