Posted on: Jun 25, 2026
Amazon Relational Database Service (Amazon RDS) Custom for SQL Server now supports the latest Cumulative Updates (CU) and General Distribution Release (GDR) updates for Microsoft SQL Server. This release includes support for SQL Server 2019 CU32+GDR KB5090407 (RDS version 15.00.4470.1.v1) and SQL Server 2022 CU25 KB5081477 (RDS version 15.00.4255.1.v1).
The GDR updates address vulnerabilities described in CVE-2026-40370. For additional information on the improvements and fixes included in these updates, see Microsoft documentation for KB5090407, KB5081477. You can upgrade your Amazon RDS Custom for SQL Server instances to apply these recommended updates using Amazon RDS Management Console, or by using the AWS SDK or CLI. To learn more about upgrading your database instances, see Amazon RDS Custom User Guide.