High · published December 11, 2025
🚨 An authenticated attacker can execute arbitrary commands on devices connected to TeamViewer DEX! The vulnerability stems from a lack of input validation in the 1E-Explorer-TachyonCore-FindFileBySizeAndHash instruction, which is absolutely shocking! 🔥 Think of this like a hotel check-in process — if the receptionist doesn't verify your ID, they might let in someone posing as a guest, who could then access any room! Here, the input validation is that missing verification, allowing potential intruders to act with a level of authority they shouldn't have. If exploited, this command injection flaw could allow attackers to remotely execute elevated commands, giving them the power to manipulate devices at will. This could lead to data breaches, unauthorized access, or even full control over connected systems, posing a significant risk to the integrity and security of the platform.
Think of this like a hotel check-in process — if the receptionist doesn't verify your ID, they might let in someone posing as a guest, who could then access any room! Here, the input validation is that missing verification, allowing potential intruders to act with a level of authority they shouldn't have. The command injection vulnerability in TeamViewer DEX enables attackers with Actioner privileges to inject and execute arbitrary commands due to improper input validation in the specified instruction. This flaw could be leveraged to gain elevated access and control over connected devices.
If exploited, this command injection flaw could allow attackers to remotely execute elevated commands, giving them the power to manipulate devices at will. This could lead to data breaches, unauthorized access, or even full control over connected systems, posing a significant risk to the integrity and security of the platform. Immediately update TeamViewer DEX to version 21.1 or later to close this vulnerability. Additionally, review user permissions and consider restricting Actioner privileges to only those who absolutely need them. Regular audits of command inputs can also help reinforce security. You've got this! Patch up and secure your systems — together we can make the digital world a safer place! 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| teamviewer/digital_employee_experience | < 21.1 | 21.1 |