Microsoft Edge in Microsoft Windows 10 1709 allows an attacker to obtain information to further compromise the user's system, due to how the scripting engine handles objects in memory, aka "Scripting Engine Information Disclosure Vulnerability". This CVE ID is unique from CVE-2018-0767 and CVE-2018-0780.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0800