Microsoft Office allows a remote code execution vulnerability due to the way that it handles objects in memory, aka "Microsoft Office Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-0243.
https://www.deepinstinct.com/blog/uncorking-old-wine-zero-day-cobalt-strike-loader
https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8570
https://github.com/tezukanice/Office8570
https://github.com/rxwx/CVE-2017-8570