CVE-2026-21262

Microsoft · Published March 10, 2026

8.8

CVSS v3.1

HIGH

Patch availableGet patch

Description

Microsoft SQL Server Elevation of Privilege Vulnerability. Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network.

Affected Products

Microsoft SQL Server 2017 for x64-based Systems (GDR)
Microsoft SQL Server 2019 for x64-based Systems (GDR)
Microsoft SQL Server 2016 for x64-based Systems Service Pack 3 (GDR)
Microsoft SQL Server 2017 for x64-based Systems (CU 31)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H