CVE-2018-6981 and CVE-2018-6982 reference a guest-to-host escape, and a potential information leak between the host machine and the guest machine. VMware ESXi, Fusion and Workstation contain uninitialized stack memory usage in the vmxnet3 virtual network adapter.

This issue may allow a guest to execute code on the host. The issue is present if vmxnet3 is enabled. Non vmxnet3 virtual adapters are not affected.

Threat actors could exploit these vulnerabilities to execute code from a guest host machine, gaining root access on the host machine. Exploitation of these vulnerabilities requires either local access or a previous separate exploit to gain remote access.

At the time of publishing, no known attacks using these vulnerabilities have been identified in the wild.

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