A remote code execution vulnerability exists when the Windows Imaging Library improperly handles memory.To exploit this vulnerability, an attacker would first have to coerce a victim to open a specially crafted file.The security update addresses the vulnerability by correcting how the Windows Imaging Library handles memory., aka 'Windows Imaging Library Remote Code Execution Vulnerability'.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0708