Description
Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft SQL Server 2022 (GDR) | 16.0.0 – < 16.0.1165.1 | 16.0.1165.1 |
| Microsoft | Microsoft SQL Server 2022 for x64-based Systems (CU 22) | 16.0.0.0 – < 16.0.4230.2 | 16.0.4230.2 |
| Microsoft | Microsoft SQL Server 2025 for x64-based Systems (GDR) | 17.0.1050.2 – < 17.0.1050.2 | 17.0.1050.2 |
Advisories 3
- WID-SEC-2026-0079 Microsoft SQL Server 2022: Schwachstelle ermöglicht Privilegieneskalation BSI CERT-Bund (WID) · Jan 14, 2026
- NCSC-2026-0008 Kwetsbaarheid verholpen in Microsoft SQL Server NCSC-NL (Netherlands) · Jan 13, 2026
- MSRC-CVE-2026-20803 Microsoft SQL Server Elevation of Privilege Vulnerability Microsoft Security Response Center · Jan 13, 2026
References
- Microsoft SQL Server Elevation of Privilege Vulnerability vendor-advisory patch