STIGQter: STIG Summary: Microsoft Windows 11 Security Technical Implementation Guide Version: 2 Release: 8 Benchmark Date: 01 Jul 2026:

The built-in guest account must be renamed.

DISA Rule

SV-253436r991589_rule

Vulnerability Number

V-253436

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

WN11-SO-000025

Severity

CAT II

CCI(s)

• CCI-000366 - Implement the security configuration settings.

Weight

10

Fix Recommendation

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Accounts: Rename guest account" to a name other than "Guest".

Check Contents

Verify the effective setting in Local Group Policy Editor.
Run "gpedit.msc".

Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options.

If the value for "Accounts: Rename guest account" is set to "Guest", this is a finding.

Vulnerability Number

V-253436

Documentable

False

Rule Version

WN11-SO-000025

Severity Override Guidance

Verify the effective setting in Local Group Policy Editor.
Run "gpedit.msc".

Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options.

If the value for "Accounts: Rename guest account" is set to "Guest", this is a finding.

Check Content Reference

M

Target Key

5471