Authenticated security-feature bypass in key storage
Published Sep 15, 2021 · Updated Aug 10, 2026
Security-feature bypass in Microsoft Windows Key Storage Provider allows remote authenticated users to compromise protected integrity. Microsoft has not disclosed the affected operation or how attacker-controlled input bypasses the provider's security enforcement. Network access and low-privileged authentication are required, and the published impact is limited to unauthorized integrity changes.
Summary
What happened
Security-feature bypass in Microsoft Windows Key Storage Provider allows remote authenticated users to compromise protected integrity. Microsoft has not disclosed the affected operation or how attacker-controlled input bypasses the provider's security enforcement. Network access and low-privileged authentication are required, and the published impact is limited to unauthorized integrity changes.
The record
- CVE
- CVE-2021-38624
- Published
- Sep 15, 2021
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-639
- Attack vector
- network
- 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 <10.0.17763.2237
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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