Vulnerability · Published Jan 29, 2026 · Assigned by TV
CVE-2026-23571Command Injection in 1E-Nomad-RunPkgStatusRequest Instruction in TeamViewer DEX
Medium 6.8
In plain English
A medium-severity improper input validation in DEX from TeamViewer. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 55% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| TeamViewer | DEX | 0 – through 20 |
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H