CVE-2026-94520
Medium
Description
Use of externally-controlled format string in SQL Server allows an authorized attacker to deny service over a network.
SeverityMedium
CVSS4.9
Exploit probability—
Product
Microsoft SQL Server 2017 (GDR)
PublishedOct 13, 2026
First seenOct 13, 2026
Weakness typeCWE-134CWE-134
How to fix
Update
- Microsoft Microsoft SQL Server 2017 (GDR)14.0.2140.2 or later
- Microsoft Microsoft SQL Server 2017 for x64-based Systems (CU31)14.0.3560.2 or later
- Microsoft Microsoft SQL Server 2019 (GDR)15.0.2200.2 or later
- Microsoft Microsoft SQL Server 2019 for x64-based Systems (CU32)15.0.4500.2 or later
- Microsoft Microsoft SQL Server 2022 (GDR)16.0.1210.3 or later
- Microsoft Microsoft SQL Server 2022 for x64-based Systems (CU27)16.0.4305.5 or later
- Microsoft Microsoft SQL Server 2025 for x64-based Systems (CU9)17.0.5015.4 or later
- Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR)17.0.1145.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft Microsoft SQL Server 2017 (GDR) | 14.0.0 ≤ v < 14.0.2140.2 | 14.0.2140.2 |
| Microsoft Microsoft SQL Server 2017 for x64-based Systems (CU31) | 14.0.3006.16 ≤ v < 14.0.3560.2 | 14.0.3560.2 |
| Microsoft Microsoft SQL Server 2019 (GDR) | 15.0.0 ≤ v < 15.0.2200.2 | 15.0.2200.2 |
| Microsoft Microsoft SQL Server 2019 for x64-based Systems (CU32) | 15.0.4003.23 ≤ v < 15.0.4500.2 | 15.0.4500.2 |
| Microsoft Microsoft SQL Server 2022 (GDR) | 16.0.0 ≤ v < 16.0.1210.3 | 16.0.1210.3 |
| Microsoft Microsoft SQL Server 2022 for x64-based Systems (CU27) | 16.0.4003.1 ≤ v < 16.0.4305.5 | 16.0.4305.5 |
| Microsoft Microsoft SQL Server 2025 for x64-based Systems (CU9) | 17.0.4006.2 ≤ v < 17.0.5015.4 | 17.0.5015.4 |
| Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR) | 17.0.1050.2 ≤ v < 17.0.1145.4 | 17.0.1145.4 |
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