Remote code execution via heap buffer overflow
Published Nov 14, 2023 · Updated Oct 8, 2025
Heap-based buffer overflow in the Microsoft WDAC OLE DB provider for SQL Server allows remote attackers to execute arbitrary code. Microsoft identifies the weakness class but has not disclosed the affected parser, buffer, or exact out-of-bounds write. Exploitation requires an unauthenticated attacker to convince a user to connect an application to a malicious SQL server.
Summary
What happened
Heap-based buffer overflow in the Microsoft WDAC OLE DB provider for SQL Server allows remote attackers to execute arbitrary code. Microsoft identifies the weakness class but has not disclosed the affected parser, buffer, or exact out-of-bounds write. Exploitation requires an unauthenticated attacker to convince a user to connect an application to a malicious SQL server.
The record
- CVE
- CVE-2023-36402
- Published
- Nov 14, 2023
- Updated
- Oct 8, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-122, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 14, 2023CVE publishedPublication date reported by the CVE source.
- Oct 8, 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=10.0.10240.0 <10.0.10240.20308
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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