A command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Explorer-TachyonCore-DevicesListeningOnAPort instruction prior V21. Improper input validation, allowing authenticated attackers with Actioner privileges to inject arbitrary commands. Exploitation enables remote execution of elevated commands on devices connected to the platform.

A command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Nomad-GetCmContentLocations instruction prior V19.2. Improper input validation, allowing authenticated attackers with Actioner privileges to inject arbitrary commands. Exploitation enables remote execution of elevated commands on devices connected to the platform.

A command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-ConfigMgrConsoleExtensions instructions. Improper input validation, allowing authenticated attackers with Actioner privileges to inject arbitrary commands. Exploitation enables remote execution of elevated commands on devices connected to the platform.

A command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Explorer-TachyonCore-LogoffUser instruction prior V21.1. Improper input validation, allowing authenticated attackers with Actioner privileges to inject arbitrary commands. Exploitation enables remote execution of elevated commands on devices connected to the platform.

A command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-PatchInsights-Deploy instruction prior V15. Improper input validation, allowing authenticated attackers with Actioner privileges to inject arbitrary commands. Exploitation enables remote execution of elevated commands on devices connected to the platform.

A vulnerability in TeamViewer DEX Client (former 1E client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to bypass file integrity validation via a crafted request. By providing a valid hash for a malicious file, an attacker can cause the service to incorrectly validate and process the file as trusted, enabling arbitrary code execution under the Nomad Branch service context.

A vulnerability in TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to cause a denial of service (application crash) via a crafted command, resulting in service termination.

A command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Explorer-TachyonCore-CheckSimpleIoC instruction. Improper input validation, allowing authenticated attackers with Actioner privileges to inject arbitrary commands. Exploitation enables remote execution of elevated commands on devices connected to the platform.

A privilege escalation vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Nomad-SetWorkRate instruction prior V17.1. The improper handling of executable search paths could allow local attackers with write access to a PATH directory on a device to escalate privileges and execute arbitrary code as SYSTEM.

A vulnerability in TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 25.11 for Windows allows malicious actors to coerce the service into transmitting data to an arbitrary internal IP address, potentially leaking sensitive information.

A command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Nomad-PauseNomadJobQueue instruction prior V25. Improper input validation, allowing authenticated attackers with Actioner privileges to inject arbitrary commands. Exploitation enables remote execution of elevated commands on devices connected to the platform.

A command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Explorer-TachyonCore-FindFileBySizeAndHash instruction prior V21.1. Improper input validation, allowing authenticated attackers with Actioner privileges to inject arbitrary commands. Exploitation enables remote execution of elevated commands on devices connected to the platform.

A privilege escalation vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Exchange-NomadClientHealth-ConfigureGeneralSetting instruction prior V3.4. Improper protection of the execution path on the local device allows attackers, with local access to the device during execution, to hijack the process and execute arbitrary code with SYSTEM privileges.

An improper access control vulnerability in TeamViewer Full Client, Host, and related affected modules on Windows, Linux, and macOS allows an authenticated remote attacker to bypass user-configured permission settings during session establishment. By modifying access control parameters for restricted features, an attacker can perform actions that were explicitly denied by the victim's configuration. This may result in unauthorized actions and potentially lead to remote code execution on the target system.

TeamViewer Full Client and Host for Linux prior version 15.82 contains an improper path validation vulnerability in the Cloud Session Recording (CSR) functionality. By exploiting a race condition during path validation and subsequent file access, a local authenticated attacker may cause privileged file operations in unintended locations on the affected system.

TeamViewer Full Client and Host prior to version 15.82 on Windows contain a TOCTOU race condition in the installer rollback mechanism. A local low-privileged attacker can replace rollback backup files stored in a user-writable temporary directory before they are restored by an elevated installer, resulting in privilege escalation to NT AUHORITY/SYSTEM. Exploitation requires successful timing of the race condition and a rollback during installation or update.

TeamViewer Full Client and Host for Linux and macOS prior version 15.82 contain a heap-based buffer overflow vulnerability in the processing of .tvs session recording files. A size mismatch during decompression of recorded session data can result in out-of-bounds heap writes. By convincing a user to open a specially crafted session recording through the "Play or convert recorded session…" feature, an attacker may achieve arbitrary code execution with the privileges of the current user

Improper path validation in the local IPC service of TeamViewer Full Client and Host on Windows, Linux, and macOS prior to version 15.82 allows a local authenticated user with low privileges to perform arbitrary file writes with elevated privileges (NT AUTHORITY/SYSTEM \ root). By sending crafted IPC commands to the local service daemon, an attacker could manipulate file paths, leading to local privilege escalation.

A command injection vulnerability in TeamViewer Full Client and Host for Linux prior to version 15.81.5 allows a remote attacker to execute arbitrary commands in the context of the current user via a specially crafted URL sent through the out-of-session chat feature. Exploitation requires user interaction by clicking the malicious link.

Improper neutralization of path traversal sequences in TeamViewer Desktop Clients prior Version 15.81.5 allows an authenticated remote session participant to write files to unintended locations on the local file system via file transfer or virtual file clipboard mechanisms. An attacker can leverage this behavior to achieve arbitrary file write and potentially execute code with the privileges of the affected user.

TeamViewer Full Client and Host for macOS before version 15.80 contain a business logic error that can allow an authenticated attacker to bypass a configured 2FA for Connections approval flow via Unattended Access and establish a remote connection to an affected macOS host.

A broken access control vulnerability exists in the TeamViewer DEX Platform (On‑Premises) prior version 9.2. Certain backend API endpoints do not correctly enforce authorization checks, allowing an authenticated user with low privileges to perform actions and access resources intended only for higher‑privileged roles. An attacker with low‑privileged credentials may exploit this to gain unauthorized access to administrative or sensitive functionality.

TeamViewer Desktop through 14.7.1965 allows a bypass of remote-login access control because the same key is used for different customers' installations. It used a shared AES key for all installations since at least as far back as v7.0.43148, and used it for at least OptionsPasswordAES in the current version of the product. If an attacker were to know this key, they could decrypt protect information stored in the registry or configuration files of TeamViewer. With versions before v9.x , this allowed for attackers to decrypt the Unattended Access password to the system (which allows for remote login to the system as well as headless file browsing). The latest version still uses the same key for OptionPasswordAES but appears to have changed how the Unattended Access password is stored. While in most cases an attacker requires an existing session on a system, if the registry/configuration keys were stored off of the machine (such as in a file share or online), an attacker could then decrypt the required password to login to the system.

A command injection vulnerability was discovered in TeamViewer DEX Platform On-Premises (former 1E DEX Platform On-Premises) prior to version 9.2. Improper input validation allows authenticated users with at least questioner privileges to inject commands in specific instructions. Exploitation could lead to execution of elevated commands on devices connected to the platform.

Insecure UNIX Symbolic Link (Symlink) Following in TeamViewer Remote Client prior Version 15.52 for macOS allows an attacker with unprivileged access, to potentially elevate privileges or conduct a denial-of-service-attack by overwriting the symlink.

Improper fingerprint validation in the TeamViewer Client (Full & Host) prior Version 15.54 for Windows and macOS allows an attacker with administrative user rights to further elevate privileges via executable sideloading.

A command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-Nomad-RunPkgStatusRequest instruction. Improper input validation allows authenticated attackers with actioner privilege to run elevated arbitrary commands on connected hosts via malicious commands injected into the instruction’s input field. Users of 1E Client version 24.5 or higher are not affected.

A missing validation of a user-controlled value in the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an adjacent network attacker to tamper with log timestamps via crafted UDP Sync command. This could result in forged or nonsensical datetime prefixes and compromising log integrity and forensic correlation.

An out-of-bounds read vulnerability in the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows a remote attacker to leak stack memory and cause a denial of service via a crafted request. The leaked stack memory could be used to bypass ASLR remotely and facilitate exploitation of other vulnerabilities on the affected system.

An out-of-bounds read vulnerability in the TeamViewer DEX Client (former 1E Client) - Content Distribution Service (NomadBranch.exe) prior version 26.1 for Windows allows an attacker on the adjacent network to cause information disclosure or denial-of-service via a special crafted packet. The leaked memory could be used to bypass ASLR and facilitate further exploitation.