CVE-2026-94520
Received
Received - Intake
Use of Externally-Controlled Format String in SQL Server
Vulnerability report for CVE-2026-94520, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-13
Last updated on: 2026-10-13
Assigner: Microsoft Corporation
Description
Description
Use of externally-controlled format string in SQL Server allows an authorized attacker to deny service over a network.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Microsoft | Microsoft | SQL Server 2017 (GDR) 14.0.0 |
| Microsoft | Microsoft | SQL Server 2017 for x64-based Systems (CU31) 14.0.3006.16 |
| Microsoft | Microsoft | SQL Server 2019 (GDR) 15.0.0 |
| Microsoft | Microsoft | SQL Server 2019 for x64-based Systems (CU32) 15.0.4003.23 |
| Microsoft | Microsoft | SQL Server 2022 (GDR) 16.0.0 |
| Microsoft | Microsoft | SQL Server 2022 for x64-based Systems (CU27) 16.0.4003.1 |
| Microsoft | Microsoft | SQL Server 2025 for x64-based Systems (CU9) 17.0.4006.2 |
| Microsoft | Microsoft | SQL Server 2025 for x64-based Systems (GDR) 17.0.1050.2 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-134 | The product uses a function that accepts a format string as an argument, but the format string originates from an external source. |
