Sensitive-information disclosure to local low-privileged users
Published Sep 15, 2021 · Updated Aug 10, 2026
Information disclosure in Microsoft Windows Storage allows local users to read sensitive information via unspecified local vectors. Microsoft has not published the affected storage locus, the input involved, or the incorrect operation that discloses the information. Exploitation requires local low-privileged access; the published assessment limits the consequence to confidentiality, with no integrity or availability impact.
Summary
What happened
Information disclosure in Microsoft Windows Storage allows local users to read sensitive information via unspecified local vectors. Microsoft has not published the affected storage locus, the input involved, or the incorrect operation that discloses the information. Exploitation requires local low-privileged access; the published assessment limits the consequence to confidentiality, with no integrity or availability impact.
The record
- CVE
- CVE-2021-38637
- Published
- Sep 15, 2021
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- T1005
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 15, 2021CVE 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=10.0.17763.0 <10.0.17763.2183
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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