Authenticated code execution via AD CS use-after-free
Published Jul 11, 2023 · Updated Jan 1, 2025
Use-after-free in Active Directory Certificate Services on affected Windows Server builds allows remote authenticated users to execute code. Microsoft identifies the AD CS flaw as use-after-free but has not disclosed the affected function, object lifetime error, or request that triggers access to freed memory. Exploitation requires high privileges and a network-reachable AD CS deployment, and the undisclosed high-complexity condition enables code execution in the service context.
Summary
What happened
Use-after-free in Active Directory Certificate Services on affected Windows Server builds allows remote authenticated users to execute code. Microsoft identifies the AD CS flaw as use-after-free but has not disclosed the affected function, object lifetime error, or request that triggers access to freed memory. Exploitation requires high privileges and a network-reachable AD CS deployment, and the undisclosed high-complexity condition enables code execution in the service context.
The record
- CVE
- CVE-2023-35351
- Published
- Jul 11, 2023
- Updated
- Jan 1, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-362, CWE-416, T1210
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jul 11, 2023CVE publishedPublication date reported by the CVE source.
- Jan 1, 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 <10.0.17763.4645
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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