High severity8.8NVD Advisory· Published Mar 10, 2026· Updated Jul 10, 2026

CVE-2026-21262

Description

Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network.

Microsoft/Microsoft SQL Server 2016 Service Pack 3 (GDR)v5
Range: 13.0.0
Microsoft/Microsoft SQL Server 2017 (CU 31)v5
Range: 14.0.0
Microsoft/Microsoft SQL Server 2017 (GDR)v5
Range: 14.0.0
Microsoft/Microsoft SQL Server 2019 (CU 32)v5
Range: 15.0.0.0
Microsoft/Microsoft SQL Server 2019 (GDR)v5
Range: 15.0.0
Microsoft/Microsoft SQL Server 2022 (GDR)v5
Range: 16.0.0
Microsoft/Microsoft SQL Server 2022 for x64-based Systems (CU 23)v5
Range: 16.0.0.0
Microsoft/Microsoft SQL Server 2025 (CU 2)v5
Range: 17.0.0.0
Microsoft/Microsoft SQL Server 2025 for x64-based Systems (GDR)v5
Range: 17.0.1050.2
Microsoft/SQL 2016 Azure Connect Feature Packcpe-rescue
Range: 13.0.0
Microsoft/SQL Server6 versions
cpe:2.3:a:microsoft:sql_server_2016:*:*:*:*:*:*:x64:*+ 5 more
- cpe:2.3:a:microsoft:sql_server_2016:*:*:*:*:*:*:x64:*range: >=13.0.6300.2,<13.0.6480.4
- cpe:2.3:a:microsoft:sql_server_2017:*:*:*:*:*:*:x64:*range: >=14.0.1000.169,<14.0.2100.4
- cpe:2.3:a:microsoft:sql_server_2019:*:*:*:*:*:*:x64:*range: >=15.0.2000.5,<15.0.2160.4
- cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*range: >=16.0.1000.6,<16.0.1170.5
- cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*range: >=17.0.1000.7,<17.0.1105.2
- (no CPE)