cve 2026 21262

CVE-2026-21262 is an elevation-of-privilege vulnerability affecting supported releases of Microsoft SQL Server. Microsoft has published a security advisory for this issue, and the immediate action for SQL Server administrators is to identify their SQL Server build and apply the matching Microsoft security update, either a General Distribution Release (GDR) or a Cumulative Update (CU), as provided for the installed baseline. The tag covers discussions on patching this specific vulnerability, including how to map SQL Server builds to the correct update. It is relevant for database administrators and IT professionals managing SQL Server security updates.