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CVE-2026-16729
Summary
Stack-based buffer overflow in SQL Server allows an authorized attacker to elevate privileges over a network.
Products covered
Microsoft SQL Server 2017 for x64-based Systems (CU31)
Microsoft SQL Server 2017 for x64-based Systems (GDR)
Microsoft SQL Server 2019 for x64-based Systems (GDR)
Microsoft SQL Server 2022 for x64-based Systems (CU27)
Microsoft SQL Server 2025 for x64-based Systems (GDR)
Microsoft SQL Server 2025 for x64-based Systems (CU9)
Microsoft SQL Server 2019 for x64-based Systems (CU32)
Microsoft SQL Server 2022 for x64-based Systems (GDR)
Remediation
Install KB5128496. Install KB5128497. Install KB5128495. Install KB5126934. Install KB5128492. Install KB5126967. Install KB5128494. Install KB5128493.
Vendor-listed fixes
14.0.3560.2
14.0.2140.2
15.0.2200.2
16.0.4305.5
17.0.1145.4
17.0.5015.4
15.0.4500.2
16.0.1210.3
CVEs in this advisory 1
Updates
- Published by Microsoft Security Response Center
The publication date reported by the vendor.
- Added to SecurityAlert
We collected the advisory from the official source.
- Confirmed at the source
Our collector saw this advisory during a later source check.