Remote Access Plus was reported with a vulnerability that lets unauthenticated attackers execute arbitrary code on Remote Access Plus instances. This issue was reported by Steeven Seeley of Source Incite and is now been fixed.
The security fix is released in build #10.0.452 and you can download the latest build from here.
(or)
1. From your Remote Access Plus web console, click on your current build number in the top right corner.
2. You can find the latest build applicable to you. You can download the PPM and update it.