Remote code execution via heap buffer overflow
Published Jul 9, 2024 · Updated Dec 9, 2025
Heap-based buffer overflow in Microsoft SQL Server Native Client OLE DB Provider allows remote attackers to execute arbitrary code. Microsoft identifies the affected component and CWE but has not disclosed the parsing routine, input field, or out-of-bounds write that corrupts the heap. Exploitation requires user interaction; successful corruption executes code in the affected process and can compromise its data and operation.
Summary
What happened
Heap-based buffer overflow in Microsoft SQL Server Native Client OLE DB Provider allows remote attackers to execute arbitrary code. Microsoft identifies the affected component and CWE but has not disclosed the parsing routine, input field, or out-of-bounds write that corrupts the heap. Exploitation requires user interaction; successful corruption executes code in the affected process and can compromise its data and operation.
The record
- CVE
- CVE-2024-21398
- Published
- Jul 9, 2024
- Updated
- Dec 9, 2025
- Vendor
- Microsoft
- Product
- Microsoft SQL Server 2016 Service Pack 3 Azure Connect Feature Pack
- Classifications
- CWE-122, 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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