Windows Server 2025 Remote Desktop Services must be configured with the client connection encryption set to High Level.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-278116 | SRG-OS-000033-GPOS-00014 | WN25-CC-000380 | SV-278116r1181054_rule | 2026-02-20 | 1 |
Description
Remote connections must be encrypted to prevent interception of data or sensitive information. Selecting "High Level" will ensure encryption of Remote Desktop Services sessions in both directions.
Satisfies: SRG-OS-000033-GPOS-00014, SRG-OS-000250-GPOS-00093
ℹ️ Check
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: \SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services\
Value Name: MinEncryptionLevel
Type: REG_DWORD
Value: 0x00000003 (3)
✔️ Fix
Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Remote Desktop Services >> Remote Desktop Session Host >> Security >> Set client connection encryption level to "Enabled" with "High Level" selected.