Improper verification of cryptographic signature during installation of a VPN driver via the TeamViewerservice.exe component of TeamViewer Remote Clients prior version 15.58.4 for Windows allows an attacker with local unprivileged access on a Windows system to elevate their privileges and install drivers.

Improper initialization of default settings in TeamViewer Remote Client prior version 15.51.5 for Windows, Linux and macOS, allow a low privileged user to elevate privileges by changing the personal password setting and establishing a remote connection to a logged-in admin account.