Authenticated service interruption via improper input validation
Published May 13, 2025 · Updated Feb 13, 2026
Denial of service in Microsoft Active Directory Certificate Services allows remote authenticated users to interrupt certificate services. Microsoft identifies improper input validation in AD CS but has not disclosed the affected request field, parser, or validation operation. Exploitation requires valid credentials and network access to the CA; the documented consequence is loss of availability, not data exposure or modification.
Summary
What happened
Denial of service in Microsoft Active Directory Certificate Services allows remote authenticated users to interrupt certificate services. Microsoft identifies improper input validation in AD CS but has not disclosed the affected request field, parser, or validation operation. Exploitation requires valid credentials and network access to the CA; the documented consequence is loss of availability, not data exposure or modification.
The record
- CVE
- CVE-2025-29968
- Published
- May 13, 2025
- Updated
- Feb 13, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-20, T1499
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 13, 2025CVE publishedPublication date reported by the CVE source.
- Feb 13, 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?
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- Affected versionversion=10.0.17763.0 <10.0.17763.7314
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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