Local disclosure of sensitive kernel information
Published Oct 14, 2025 · Updated Oct 14, 2025
Information disclosure in Microsoft Windows Kernel on affected Windows Server builds allows local users to read sensitive kernel data. Microsoft has not published the vulnerable kernel routine, the data source, or the operation that exposes the information. Exploitation requires low-privilege local access and no user interaction; the documented consequence is confidentiality loss only.
Summary
What happened
Information disclosure in Microsoft Windows Kernel on affected Windows Server builds allows local users to read sensitive kernel data. Microsoft has not published the vulnerable kernel routine, the data source, or the operation that exposes the information. Exploitation requires low-privilege local access and no user interaction; the documented consequence is confidentiality loss only.
The record
- CVE
- CVE-2025-55683
- Published
- Oct 14, 2025
- Updated
- Oct 14, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-200
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 14, 2025CVE publishedPublication date reported by the CVE source.
- Oct 14, 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=10.0.17763.0 <10.0.17763.7919
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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