Security feature bypass via improper input validation
Published Jan 9, 2024 · Updated Jun 3, 2025
Improper input validation in Microsoft Windows Key Distribution Service allows remote authenticated users to bypass a security feature. Microsoft has not disclosed the invalid input, the validation operation performed incorrectly, or the protected control that is bypassed. Exploitation requires high privileges and user interaction, with reported confidentiality and integrity consequences but no service interruption.
Summary
What happened
Improper input validation in Microsoft Windows Key Distribution Service allows remote authenticated users to bypass a security feature. Microsoft has not disclosed the invalid input, the validation operation performed incorrectly, or the protected control that is bypassed. Exploitation requires high privileges and user interaction, with reported confidentiality and integrity consequences but no service interruption.
The record
- CVE
- CVE-2024-21316
- Published
- Jan 9, 2024
- Updated
- Jun 3, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-20
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jan 9, 2024CVE publishedPublication date reported by the CVE source.
- Jun 3, 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 <10.0.17763.5329
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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