STIGQter STIGQter: STIG Summary: VMware vSphere 8.0 ESXi Security Technical Implementation Guide Version: 2 Release: 4 Benchmark Date: 01 Jul 2026:

The ESXi host must restrict the use of Virtual Guest Tagging (VGT) on standard switches.

DISA Rule

SV-258775r959010_rule

Vulnerability Number

V-258775

Group Title

SRG-OS-000480-VMM-002000

Rule Version

ESXI-80-000220

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

From the vSphere Client, go to Hosts and Clusters.

Select the ESXi Host >> Configure >> Networking >> Virtual Switches.

For each port group on a standard switch that is configured to a native VLAN, click the '...' button next to the port group.

Click "Edit Settings". On the "Properties" tab, change the "VLAN ID" to an appropriate VLAN ID. Click "OK".

or

From a PowerCLI command prompt while connected to the ESXi host, run the following command:

Get-VirtualPortGroup -Name "portgroup name" | Set-VirtualPortGroup -VLanId "New VLAN#"

Check Contents

This control addresses ESXi standard switches. Distributed switches are addressed in the vCenter STIG. If there is no standard switch on the ESXi host, this is not applicable.

From the vSphere Client, go to Hosts and Clusters.

Select the ESXi Host >> Configure >> Networking >> Virtual Switches.

For each standard switch, review the "VLAN ID" on each port group and verify it is not set to "4095".

or

From a PowerCLI command prompt while connected to the ESXi host, run the following command:

Get-VirtualPortGroup | Select Name, VLanID

If any port group is configured with VLAN 4095 and is not documented as a needed exception, this is a finding.

Vulnerability Number

V-258775

Documentable

False

Rule Version

ESXI-80-000220

Severity Override Guidance

This control addresses ESXi standard switches. Distributed switches are addressed in the vCenter STIG. If there is no standard switch on the ESXi host, this is not applicable.

From the vSphere Client, go to Hosts and Clusters.

Select the ESXi Host >> Configure >> Networking >> Virtual Switches.

For each standard switch, review the "VLAN ID" on each port group and verify it is not set to "4095".

or

From a PowerCLI command prompt while connected to the ESXi host, run the following command:

Get-VirtualPortGroup | Select Name, VLanID

If any port group is configured with VLAN 4095 and is not documented as a needed exception, this is a finding.

Check Content Reference

M

Target Key

5562