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

Extensions that are approved for use must be allowlisted if used.

DISA Rule

SV-235755r961479_rule

Vulnerability Number

V-235755

Group Title

SRG-APP-000386

Rule Version

EDGE-00-000042

Severity

CAT III

CCI(s)

• CCI-001774 - Employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs on the system.

Weight

10

Fix Recommendation

Set the policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Extensions/Allow specific extensions to be installed" to "Enabled". A list of allowlisted extensions may then be specified.

Check Contents

This requirement for "Allow specific extensions to be installed" is not required; this is optional.

The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Extensions/Allow specific extensions to be installed" must be set to "Enabled".

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

"ExtensionInstallAllowlist" must be set as follows:
HKLM\SOFTWARE\Policies\Microsoft\Edge\ExtensionInstallAllowlist\1 = "extension_id1"
HKLM\SOFTWARE\Policies\Microsoft\Edge\ExtensionInstallAllowlist\2 = "extension_id2"

If configured, the list of extensions for which Microsoft Edge allows to be installed may be allowlisted.

Vulnerability Number

V-235755

Documentable

False

Rule Version

EDGE-00-000042

Severity Override Guidance

This requirement for "Allow specific extensions to be installed" is not required; this is optional.

The policy value for "Computer Configuration/Administrative Templates/Microsoft Edge/Extensions/Allow specific extensions to be installed" must be set to "Enabled".

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

"ExtensionInstallAllowlist" must be set as follows:
HKLM\SOFTWARE\Policies\Microsoft\Edge\ExtensionInstallAllowlist\1 = "extension_id1"
HKLM\SOFTWARE\Policies\Microsoft\Edge\ExtensionInstallAllowlist\2 = "extension_id2"

If configured, the list of extensions for which Microsoft Edge allows to be installed may be allowlisted.

Check Content Reference

M

Target Key

5280