STIGQter: STIG Summary: Microsoft Windows Server 2025 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 01 Jul 2026:

Windows Server 2025 must not have the Server Message Block (SMB) v1 protocol installed.

DISA Rule

SV-278023r1182034_rule

Vulnerability Number

V-278023

Group Title

SRG-OS-000095-GPOS-00049

Rule Version

WN25-00-000380

Severity

CAT II

CCI(s)

CCI-000381 - Configure the system to provide only organization-defined mission essential capabilities.

Weight

Fix Recommendation

Uninstall the SMBv1 protocol.

Open Windows PowerShell with elevated privileges (run as administrator).

Enter "Uninstall-WindowsFeature -Name FS-SMB1 -Restart".
(Omit the Restart parameter if an immediate restart of the system cannot be done.)

Alternately:

Start Server Manager.

Select the server with the feature.

Scroll down to "ROLES AND FEATURES" in the right pane.

Select "Remove Roles and Features" from the drop-down "TASKS" list.

Select the appropriate server on the "Server Selection" page and click "Next".

Deselect "SMB 1.0/CIFS File Sharing Support" on the "Features" page.

Click "Next" and "Remove" as prompted.

Check Contents

Different methods are available to disable SMBv1 on Windows Server 2025. This is the preferred method, however if WN25-00-000390 and WN25-00-000400 are configured, this is not applicable.

Open Windows PowerShell with elevated privileges (run as administrator).

Enter "Get-WindowsFeature -Name FS-SMB1".

If "Installed State" is "Installed", this is a finding.

An Installed State of "Available" or "Removed" is not a finding.

Vulnerability Number

V-278023

Documentable

False

Rule Version

WN25-00-000380

Severity Override Guidance

Check Content Reference

Target Key

5719