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

Users must be notified if a web-based program attempts to install software.

DISA Rule

SV-253412r991589_rule

Vulnerability Number

V-253412

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

WN11-CC-000320

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

The default behavior is for Internet Explorer to warn users and select whether to allow or refuse installation when a web-based program attempts to install software on the system.

To correct this, configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Installer >> "Prevent Internet Explorer security prompt for Windows Installer scripts" to "Not Configured" or "Disabled".

Check Contents

The default behavior is for Internet Explorer to warn users and select whether to allow or refuse installation when a web-based program attempts to install software on the system.

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\Installer\

Value Name: SafeForScripting

Value Type: REG_DWORD
Value: 0 (or if the Value Name does not exist)

Vulnerability Number

V-253412

Documentable

False

Rule Version

WN11-CC-000320

Severity Override Guidance

The default behavior is for Internet Explorer to warn users and select whether to allow or refuse installation when a web-based program attempts to install software on the system.

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\Installer\

Value Name: SafeForScripting

Value Type: REG_DWORD
Value: 0 (or if the Value Name does not exist)

Check Content Reference

M

Target Key

5471