CVE-2026-66818
Improper privilege management in SQL Server allows an authorized attacker to elevate privileges over a network.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.8
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- CWE
- CWE-269
- Published
- 2026-09-08
- Last modified
- 2026-09-09
Affected products
- Microsoft Microsoft SQL Server 2017 (CU 31)
- Microsoft Microsoft SQL Server 2017 (GDR)
- Microsoft Microsoft SQL Server 2019 (CU 32)
- Microsoft Microsoft SQL Server 2019 (GDR)
- Microsoft Microsoft SQL Server 2022 (CU 26)
- Microsoft Microsoft SQL Server 2022 (GDR)
- Microsoft Microsoft SQL Server 2025 (CU8)
- Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR)
Weakness type
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