CVE-2026-47876

Critical9.3Published on July 30, 2026

VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter. A malicious actor with local administrative privileges on a virtual machine with VMXNET3 virtual network adapter may exploit this issue to execute code on the host. Non VMXNET3 virtual adapters are not affected by this issue.

CVSS score9.3 / 10CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness type (CWE)CWE-787

Vulnerabilities

VMware patches critical flaws: VM escape and risk of total control of the virtual infrastructure

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Jul 29, 202617:143 min readRead

This product uses the NVD API but is not endorsed or certified by the NVD.

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VMware patches critical flaws: VM escape and risk of total control of the virtual infrastructure