This indicates an attack attempt to exploit a Memory Corruption vulnerability in Microsoft Outlook.
The vulnerability is due to an error when the vulnerable software handles a maliciously crafted msg file. A remote attacker may be able to exploit this to execute arbitrary code within the context of the application.
Microsoft Office 2019 for 32-bit editions
Microsoft Office 2019 for 64-bit editions
Office 365 ProPlus for 32-bit Systems
Office 365 ProPlus for 64-bit Systems
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.