One Identity Defender Hotfix for KB 4380406 - Fix for security vulnerability in Defender Versions 6.6.0 and 6.5.1 (4380406)

This hotfix addresses the issue below.

A security vulnerability was detected in Defender, which may grant unauthorized access to certain systems under specific situations for Defender versions 6.6.0 and 6.5.1

Please download the hotfix for your applicable Defender version:

For Defender version 6.6.0 download the hotfix from HERE

For Defender version 6.5.1 download the hotfix from HERE

Resolved Issues

The following is a list of issues resolved in this hotfix.

Applicability of this hotfix

Products affected by this hotfix

Installing this hotfix

To install the hotfix
1. Copy the supplied file (Defender-6.#.#-SOL4380406-#.exe.rename) to the computer running Defender.
2. Remove the .rename file name extension.
3. Run the (Defender-6.#.#-SOL4378246-#.exe) and follow the on-screen instructions to complete the hotfix installation.

To determine if this hotfix is installed

1. Open the list of installed programs and updates (appwiz.cpl).
2. Under Tasks, click View installed updates.
3. Check the list of installed programs and/or updates for your applicable Defender version:

• Defender-6.6-SOL4380406 under Defender 6.6.
• Defender-6.5.1-SOL4380406 under Defender 6.5.1

This hotfix updates the following files, compared to the previous Defender release:

Removing this hotfix

To remove this hotfix

1. On the computer running Defender, open the list of installed programs and updates (appwiz.cpl).
2. Select the applicable hotfix based on the installed Defender version:

Defender Hotfix: SOL4380406 under Defender 6.6

Defender Hotfix: SOL4380406-1 under Defender 6.5.1

3. Click Uninstall.

IMPORTANT:
a. Uninstalling the hotfix will only remove the selected hotfix/update version from the Defender installation, not the complete Defender package.

b. Installing Defender version 6.7 will fix this vulnerability.