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

Windows Server 2025 must restrict anonymous access to Named Pipes and Shares.

DISA Rule

SV-278219r1181363_rule

Vulnerability Number

V-278219

Group Title

SRG-OS-000138-GPOS-00069

Rule Version

WN25-SO-000250

Severity

CAT I

CCI(s)

• CCI-001090 - Prevent unauthorized and unintended information transfer via shared system resources.

Weight

10

Fix Recommendation

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> Network access: Restrict anonymous access to Named Pipes and Shares to "Enabled".

Check Contents

If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \SYSTEM\CurrentControlSet\Services\LanManServer\Parameters\

Value Name: RestrictNullSessAccess

Value Type: REG_DWORD
Value: 0x00000001 (1)

Vulnerability Number

V-278219

Documentable

False

Rule Version

WN25-SO-000250

Severity Override Guidance

If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \SYSTEM\CurrentControlSet\Services\LanManServer\Parameters\

Value Name: RestrictNullSessAccess

Value Type: REG_DWORD
Value: 0x00000001 (1)

Check Content Reference

M

Target Key

5719