---
id: CVE-2025-64990
title: >-
  A command injection vulnerability was discovered in TeamViewer DEX (former 1E
  DEX), specifically within the 1E-Explorer-TachyonCore-LogoffUser instruction
  prior V21.1
summary: >-
  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
  Acti…
severity: medium
cvss: 6.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-20
vendor: teamviewer
product: digital_employee_experience
affected:
  - digital_employee_experience < 21.1
patched:
  - digital_employee_experience 21.1
published: '2025-12-11'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T10:10:00.227'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-64990'
references:
  - url: >-
      https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2025-1006/
    label: psirt@teamviewer.com
tags:
  - nvd
epss: 0.00828
epssPercentile: 0.56162
ingestedAt: '2026-10-08T10:28:24.784Z'
---

## Overview

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.

## Affected

- `digital_employee_experience < 21.1`

## Remediation

Upgrade past the affected range:

- `digital_employee_experience 21.1`