CVE-2025-64988 is a command injection vulnerability classified under CWE-20 (Improper Input Validation) affecting TeamViewer DEX, a remote management platform formerly known as 1E DEX. The flaw exists specifically in the 1E-Nomad-GetCmContentLocations instruction prior to version 19.2. The vulnerability allows authenticated attackers who possess Actioner privileges—an elevated permission level within TeamViewer DEX—to inject arbitrary commands. Due to insufficient validation of input parameters, these attackers can remotely execute commands with elevated privileges on devices connected to the platform. The vulnerability has a CVSS 3.1 base score of 7.2, indicating high severity, with network attack vector (AV:N), low attack complexity (AC:L), requiring privileges (PR:H), no user interaction (UI:N), and impacts on confidentiality, integrity, and availability (C:H/I:H/A:H). Exploitation could lead to full system compromise of managed endpoints, enabling data theft, system manipulation, or denial of service. Although no public exploits have been reported yet, the presence of elevated privilege requirements and remote execution capability makes this a significant threat. The lack of available patches at the time of publication necessitates immediate risk mitigation by affected organizations.

For European organizations, the impact of this vulnerability is substantial. TeamViewer DEX is widely used in enterprise environments for remote device management, including in sectors such as manufacturing, healthcare, and critical infrastructure. Successful exploitation could allow attackers to execute arbitrary commands on managed devices, potentially leading to data breaches, disruption of operations, and unauthorized control over critical systems. The compromise of confidentiality, integrity, and availability could affect sensitive personal data protected under GDPR, leading to regulatory penalties and reputational damage. Additionally, remote execution capabilities could be leveraged for lateral movement within networks, increasing the risk of widespread compromise. Organizations relying on TeamViewer DEX for remote support or endpoint management must consider this vulnerability a high risk, especially given the elevated privileges required for exploitation, which may be held by system administrators or support personnel.

To mitigate this vulnerability, European organizations should immediately audit and restrict Actioner privileges within TeamViewer DEX to only trusted personnel, minimizing the number of users who can exploit this flaw. Implement strict access controls and monitor usage of the 1E-Nomad-GetCmContentLocations instruction for anomalous activity. Network segmentation should be employed to limit the exposure of critical systems managed via TeamViewer DEX. Until an official patch is released, consider disabling or limiting the use of vulnerable features if feasible. Employ endpoint detection and response (EDR) solutions to detect unusual command execution patterns. Regularly update and patch TeamViewer DEX as soon as vendor updates become available. Additionally, conduct security awareness training for administrators to recognize potential exploitation attempts and enforce multi-factor authentication to reduce the risk of credential compromise.