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

The Windows Server 2025 setting Microsoft network client: Digitally sign communications (always) must be configured to Enabled.

DISA Rule

SV-278210r1181336_rule

Vulnerability Number

V-278210

Group Title

SRG-OS-000423-GPOS-00187

Rule Version

WN25-SO-000160

Severity

CAT II

CCI(s)

• CCI-002418 - Protect the confidentiality and/or integrity of transmitted information.
• CCI-002421 - Implement cryptographic mechanisms to prevent unauthorized disclosure of information and/or detect changes to information during transmission.

Weight

10

Fix Recommendation

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> Microsoft network client: Digitally sign communications (always) 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\LanmanWorkstation\Parameters\

Value Name: RequireSecuritySignature

Value Type: REG_DWORD
Value: 0x00000001 (1)

Vulnerability Number

V-278210

Documentable

False

Rule Version

WN25-SO-000160

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\LanmanWorkstation\Parameters\

Value Name: RequireSecuritySignature

Value Type: REG_DWORD
Value: 0x00000001 (1)

Check Content Reference

M

Target Key

5719