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Word attachments opened from Outlook must be in Protected View.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-223405O365-WD-000006SV-223405r961086_ruleCCI-001662medium
Description
This policy setting allows you to determine if Word files in Outlook attachments open in Protected View. If you enable this policy setting, Outlook attachments do not open in Protected View. If you disable or do not configure this policy setting, Outlook attachments open in Protected View.
STIGDate
Microsoft Office 365 ProPlus Security Technical Implementation Guide2026-02-12

Related Frameworks

1 mapping across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (3) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

END-10Mobile Code
0.50
VPM-02Vulnerability Remediation Process
0.50
VPM-04Continuous Vulnerability Remediation Activities
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (4) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CM-7Least Functionality
1.00
SC-18(1)Identify Unacceptable Code and Take Corrective Actions
1.00
SC-18(3)Prevent Downloading and Execution
1.00
SC-18(4)Prevent Automatic Execution
1.00
CCI1 mapping
CCI-001662
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 4 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

ID.RA-08
0.50
PR.PS-02
0.50

Details

Check Text (C-223405r961086_chk)

Verify the policy value for User Configuration >> Administrative Templates >> Microsoft Word 2016 >> Word Options >> Security>> Trust Center>> Protected View >> Turn off Protected View for attachments opened from Outlook is set to "Disabled". Use the Windows Registry Editor to navigate to the following key: HKCU\software\policies\microsoft\office\16.0\word\security\protectedview If the value for disableattachmentsinpv is REG_DWORD = 0, this is not a finding.

Fix Text (F-25066r442435_fix)

Set policy value for User Configuration >> Administrative Templates >> Microsoft Word 2016 >> Word Options >> Security>> Trust Center>> Protected View >> Turn off Protected View for attachments opened from Outlook to "Disabled".