Description
Integer overflow or wraparound in SQL Server allows an authorized attacker to deny service over a network.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft SQL Server 2022 (CU 26) | 16.0.0.0 – < 16.0.4275.2 | 16.0.4275.2 |
| Microsoft | Microsoft SQL Server 2022 (GDR) | 16.0.0 – < 16.0.1200.5 | 16.0.1200.5 |
| Microsoft | Microsoft SQL Server 2025 (CU8) | 17.0.0.0 – < 17.0.4085.5 | 17.0.4085.5 |
| Microsoft | Microsoft SQL Server 2025 for x64-based Systems (GDR) | 17.0.1050.2 – < 17.0.1135.8 | 17.0.1135.8 |
Advisories 3
- WID-SEC-2026-3271 Microsoft SQL Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 8, 2026
- NCSC-2026-0350 Kwetsbaarheden verholpen in SQL Server NCSC-NL (Netherlands) · Sep 8, 2026
- MSRC-CVE-2026-67641 Microsoft SQL Server Denial of Service Vulnerability Microsoft Security Response Center · Sep 8, 2026
References
- Microsoft SQL Server Denial of Service Vulnerability vendor-advisory patch