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

Windows 11 Kernel (Direct Memory Access) DMA Protection must be enabled.

DISA Rule

SV-253426r991580_rule

Vulnerability Number

V-253426

Group Title

SRG-OS-000471-GPOS-00216

Rule Version

WN11-EP-000310

Severity

CAT II

CCI(s)

• CCI-000172 - Generate audit records for the event types defined in AU-2 c that include the audit record content defined in AU-3.

Weight

10

Fix Recommendation

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Kernel DMA Protection >> "Enumeration policy for external devices incompatible with Kernel DMA Protection" to "Enabled" with "Enumeration Policy" set to "Block All".

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\Kernel DMA Protection

Value Name: DeviceEnumerationPolicy
Value Type: REG_DWORD
Value: 0

Vulnerability Number

V-253426

Documentable

False

Rule Version

WN11-EP-000310

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\Kernel DMA Protection

Value Name: DeviceEnumerationPolicy
Value Type: REG_DWORD
Value: 0

Check Content Reference

M

Target Key

5471