A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka 'Windows VBScript Engine Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-0666, CVE-2019-0667, CVE-2019-0772.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0665