TeamViewer Improper Neutralization of Argument Delimiters Local Privilege Escalation Vulnerability (CVE-2025-0065)

This vulnerability allows local attackers to escalate privileges on affected installations of TeamViewer.

An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the TeamViewer service, which listens on TCP port 5939 by default.

The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call.

An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

TeamViewer has issued an update to correct this vulnerability.

I am one of the editors here at www.systemtek.co.uk I am a UK based technology professional, with an interest in computer security and telecoms.