An error related to handling multiple failed login attempts can be exploited to cause the hostd service to become unresponsive and subsequently cause a DoS condition for management functionality.
Denial of Service
VMware ESXi versions 6.5 and 6.7
Update to a fixed version if available.
Versions 6.5: Update to version ESXi650-201907201-UG.
Versions 6.7: No official solution is currently available.