What is the permission vulnerability in TeamViewer 13.0.5058?

The vulnerability in TeamViewer 13.0.5058 allows an attacker to modify permission settings in the TeamViewer process through [DLL injection and memory manipulation](/news/testing-the-permission-vulnerability-in-teamviewer-13-0-5058). This can enable unauthorized reverse control of a connected client or unlock disabled mouse/keyboard controls, bypassing normal permission checks.