An information disclosure vulnerability exists when VBScript improperly discloses the contents of its memory, which could provide an attacker with information to further compromise the user's computer or data, aka "Windows Scripting Engine Memory Corruption Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10.
https://www.exploit-db.com/exploits/45924/
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8552