A remote code execution vulnerability exists in Microsoft Dynamics 365 (on-premises) version 8 when the server fails to properly sanitize web requests to an affected Dynamics server, aka "Microsoft Dynamics 365 (on-premises) version 8 Remote Code Execution Vulnerability." This affects Microsoft Dynamics 365.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8609