STIGQter: STIG Summary: Microsoft Edge Security Technical Implementation Guide Version: 2 Release: 5 Benchmark Date: 01 Apr 2026:

Extensions installation must be blocklisted by default.

DISA Rule

SV-235754r960963_rule

Vulnerability Number

V-235754

Group Title

SRG-APP-000141

Rule Version

EDGE-00-000041

Severity

CAT II

CCI(s)

• CCI-000381 - Configure the system to provide only organization-defined mission essential capabilities.

Weight

10

Fix Recommendation

Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Extensions/Control which extensions cannot be installed" to "Enabled". A list of blocklisted extensions may then be specified.

Check Contents

The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Extensions/Control which extensions cannot be installed" must be set to "Enabled".

Use the Windows Registry Editor to navigate to the following key:
HKLM\SOFTWARE\Policies\Microsoft\Edge\ExtensionInstallBlocklist\1

If the value for "1" is not set to "REG_SZ = *", this is a finding.

Vulnerability Number

V-235754

Documentable

False

Rule Version

EDGE-00-000041

Severity Override Guidance

The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Extensions/Control which extensions cannot be installed" must be set to "Enabled".

Use the Windows Registry Editor to navigate to the following key:
HKLM\SOFTWARE\Policies\Microsoft\Edge\ExtensionInstallBlocklist\1

If the value for "1" is not set to "REG_SZ = *", this is a finding.

Check Content Reference

M

Target Key

5280