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High severity7.2NVD Advisory· Published Jan 13, 2026· Updated Jul 30, 2026

CVE-2026-20803

CVE-2026-20803

Description

Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.

Affected products

6
  • Microsoft/SQL Server3 versions
    cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*+ 2 more
    • cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*range: >=16.0.1000.6,<16.0.1165.1
    • cpe:2.3:a:microsoft:sql_server_2025:17.0.1000.7:*:*:*:*:*:x64:*
    • (no CPE)
  • Microsoft/Microsoft SQL Server 2022 (GDR)v5
    Range: 16.0.0
  • Microsoft/Microsoft SQL Server 2022 for x64-based Systems (CU 22)v5
    Range: 16.0.0.0
  • Microsoft/Microsoft SQL Server 2025 for x64-based Systems (GDR)v5
    Range: 17.0.1050.2

Patches

Vulnerability mechanics

References

1

News mentions

0

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