Scripts associated with public folders must be prevented from execution in Outlook.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-223348	O365-OU-000003	SV-223348r961092_rule		Medium

Description

This policy setting controls whether Outlook executes scripts that are associated with custom forms or folder home pages for public folders.

STIG	Date
Microsoft Office 365 ProPlus Security Technical Implementation Guide	2025-03-05

Details

Check Text (C-25021r744256_chk)

Verify the policy for Microsoft Outlook 2016 >> Outlook Options >> Other >> Advanced >> Do not allow Outlook object model scripts to run for public folders is set to "Enabled".

Use the Windows Registry to navigate to the following key:

HKCU\software\policies\microsoft\office\16.0\outlook\security

If the value for publicfolderscript is set to REG_DWORD = 0, this is not a finding.

Fix Text (F-25009r442264_fix)

Set the policy for User Configuration >> Administrative Templates >> Microsoft Outlook 2016 >> Outlook Options >> Other >> Advanced >> Do not allow Outlook object model scripts to run for public folders to "Enabled".