This indicates an attack attempt to exploit a Memory Corruption vulnerability in Microsoft Browser.
The vulnerability is due to an error when the vulnerable software attempts to handles a maliciously crafted web page. An attacker can exploit this by tricking a user into visiting a malicious web page and execute arbitrary code within the context of the application.
Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems
Microsoft Edge on Windows 10 Version 1803 for x64-based Systems
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.