Authenticated service interruption via heap buffer overflow
Published Sep 8, 2026 · Updated Sep 10, 2026
Heap-based buffer overflow in Microsoft SQL Server 2017 through 2025 allows remote authenticated users to interrupt the database service. Microsoft has not disclosed the affected component, input path, or bounds-checking operation that corrupts the heap. High database privileges are required, and Microsoft's published CVSS assessment supports availability loss only despite the vendor's remote-code-execution label.
Summary
What happened
Heap-based buffer overflow in Microsoft SQL Server 2017 through 2025 allows remote authenticated users to interrupt the database service. Microsoft has not disclosed the affected component, input path, or bounds-checking operation that corrupts the heap. High database privileges are required, and Microsoft's published CVSS assessment supports availability loss only despite the vendor's remote-code-execution label.
The record
- CVE
- CVE-2026-68785
- Published
- Sep 8, 2026
- Updated
- Sep 10, 2026
- Vendor
- Microsoft
- Product
- Microsoft SQL Server 2022
- Classifications
- CWE-122
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 10, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=16.0.0.0 <16.0.4275.2
- Affected versionversion=16.0.0 <16.0.1200.5
What conditions does exploitation require?
What is affected?
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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