An information disclosure vulnerability exists in Microsoft SQL Server Management Studio (SSMS) when parsing malicious XML content containing a reference to an external entity, aka "SQL Server Management Studio Information Disclosure Vulnerability." This affects SQL Server Management Studio 17.9, SQL Server Management Studio 18.0. This CVE ID is unique from CVE-2018-8527, CVE-2018-8532.
https://www.exploit-db.com/exploits/45583/
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8533