VMware has published a security advisory to address an integer overflow vulnerability in the virtual network devices.
Successful exploitation of the vulnerability could allow a guest to execute code on the host.
The product vendor has released new versions to address the issue at the following website:
System administrators may contact their product support vendors for the fixes and assistance.
https://www.vmware.com/security/advisories/VMSA-2018-0030.html
https://www.us-cert.gov/ncas/current-activity/2018/11/22/VMware-Releases-Security-Updates
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6983