Code execution via OLE DB use-after-free
Published Jul 9, 2024 · Updated Dec 9, 2025
Use-after-free in Microsoft SQL Server Native Client OLE DB Provider allows remote attackers to execute code through a malicious SQL Server. The provider accesses heap memory after releasing it while processing data returned by the attacker-controlled server. Exploitation requires a user to connect the affected client to that server, enabling code execution in the client process context.
Summary
What happened
Use-after-free in Microsoft SQL Server Native Client OLE DB Provider allows remote attackers to execute code through a malicious SQL Server. The provider accesses heap memory after releasing it while processing data returned by the attacker-controlled server. Exploitation requires a user to connect the affected client to that server, enabling code execution in the client process context.
The record
- CVE
- CVE-2024-37320
- Published
- Jul 9, 2024
- Updated
- Dec 9, 2025
- Vendor
- Microsoft
- Product
- Microsoft SQL Server 2016 Service Pack 3 Azure Connect Feature Pack
- Classifications
- CWE-416, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 9, 2024CVE publishedPublication date reported by the CVE source.
- Dec 9, 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=13.0.0 <13.0.7037.1
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.
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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