Vulnerability Description
Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network.
CVSS Score
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Sql Server 2016 | >= 13.0.6300.2, < 13.0.6480.4 |
| Microsoft | Sql Server 2017 | >= 14.0.1000.169, < 14.0.2100.4 |
| Microsoft | Sql Server 2019 | >= 15.0.2000.5, < 15.0.2160.4 |
| Microsoft | Sql Server 2022 | >= 16.0.1000.6, < 16.0.1170.5 |
| Microsoft | Sql Server 2025 | >= 17.0.1000.7, < 17.0.1105.2 |
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-21262?
CVE-2026-21262 is a vulnerability with a CVSS score of 8.8 (HIGH). Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network.
How severe is CVE-2026-21262?
CVE-2026-21262 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-21262?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Sql Server 2016, Microsoft Sql Server 2017, Microsoft Sql Server 2019, Microsoft Sql Server 2022, Microsoft Sql Server 2025.