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WN25-CC-000320 Windows Server 2025 Turning off File Explorer heap termination on corruption must be disabled.

DISA STIG library V1R4
All changes in this version
first version loaded CAT III

Maps to CM-6 via CCI-000366

Title

Windows Server 2025 Turning off File Explorer heap termination on corruption must be disabled.

Control

The default behavior is for File Explorer heap termination on corruption to be enabled. If the registry Value Name below does not exist, this is not a finding. If it exists and is configured with a value of "0", this is not a finding. If it exists and is configured with a value of "1", this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Explorer\ Value Name: NoHeapTerminationOnCorruption Value Type: REG_DWORD Value: 0x00000000 (0) (or if the Value Name does not exist)

Discussion

Legacy plug-in applications may continue to function when a File Explorer session has become corrupt. Disabling this feature will prevent this.

Related controls

CCI-000366

Fix

The default behavior is for File Explorer heap termination on corruption to be disabled. To correct this, configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> File Explorer >> Turn off heap termination on corruption to "Not Configured" or "Disabled".