STIGQter: STIG Summary: Microsoft Windows Server 2022 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

Windows Server 2022 Windows Update must not obtain updates from other PCs on the internet.

DISA Rule

SV-254357r991589_rule

Vulnerability Number

V-254357

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

WN22-CC-000260

Severity

CAT III

CCI(s)

• CCI-000366 - Implement the security configuration settings.

Weight

10

Fix Recommendation

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Delivery Optimization >> Download Mode to "Enabled" with any option except "Internet" selected.

Acceptable selections include:

HTTP only (0)
LAN (1)
Group (2)
Internet (3)
Simple (99)

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: \SOFTWARE\Policies\Microsoft\Windows\DeliveryOptimization\

Value Name: DODownloadMode

Value Type: REG_DWORD
Value: 0x00000000 (0) - No peering (HTTP Only)
0x00000001 (1) - Peers on same NAT only (LAN)
0x00000002 (2) - Local Network / Private group peering (Group)
0x00000063 (99) - Simple download mode, no peering (Simple)

A value of 0x00000003 (3), Internet, is a finding.

Vulnerability Number

V-254357

Documentable

False

Rule Version

WN22-CC-000260

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: \SOFTWARE\Policies\Microsoft\Windows\DeliveryOptimization\

Value Name: DODownloadMode

Value Type: REG_DWORD
Value: 0x00000000 (0) - No peering (HTTP Only)
0x00000001 (1) - Peers on same NAT only (LAN)
0x00000002 (2) - Local Network / Private group peering (Group)
0x00000063 (99) - Simple download mode, no peering (Simple)

A value of 0x00000003 (3), Internet, is a finding.

Check Content Reference

M

Target Key

5485