CVE-2025-64990: Command Injection in 1E-Explorer-TachyonCore-LogoffUser Instruction

Published Dec 11, 2025
·
Updated

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 Software

2 affected components
TeamViewer 1E DEX<21.1
TeamViewer Digital Employee Experience<21.1

Remediation

Information

On-prem users should update to the latest available version (v21.1 or later). SaaS instances have been updated automatically.

Event History

Dec 11, 2025
CVE Published
via MITRE·11:27 AM
Data Sourced
via MITRE·11:27 AM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·12:16 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-64990?

CVE-2025-64990 has a high severity rating due to the potential for command injection by authenticated users.

2

How do I fix CVE-2025-64990?

To remediate CVE-2025-64990, update TeamViewer DEX to version 21.1 or later.

3

Who is affected by CVE-2025-64990?

CVE-2025-64990 affects TeamViewer DEX users who are running versions prior to 21.1.

4

What can attackers do with CVE-2025-64990?

Attackers with Actioner privileges can exploit CVE-2025-64990 to execute arbitrary commands on the affected system.

5

What are the implications of CVE-2025-64990?

The implications of CVE-2025-64990 include potential unauthorized access and control over the system by authenticated attackers.

Contact

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