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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Vmsa 2026 0006 | — | Upgrade VMware ESXi 8.0.0 to build number 25626445Upgrade VMware ESXi 8.0.3 to build number 25595708 | Aug 7, 2026 | Jul 29, 2026 |
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