Command Injection Vulnerability in TeamViewer DEX Affects Connected Hosts
CVE-2026-23571

6.8MEDIUM

Key Information:

Vendor

Teamviewer

Status
Dex
Vendor
CVE Published:
29 January 2026

What is CVE-2026-23571?

A command injection vulnerability was identified in TeamViewer DEX, specifically in the 1E-Nomad-RunPkgStatusRequest instruction. This flaw stems from improper input validation, enabling authenticated users with actioner privileges to execute arbitrary commands on connected hosts. Attackers could exploit this vulnerability by injecting malicious commands into the input field of the instruction, posing a significant security risk to affected environments. To mitigate this risk, it is essential for users to upgrade to version 24.5 or higher.

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Affected Version(s)

DEX 0 <= 20

References

https://www.teamviewer.com/en/resources/trust-center/secu...

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Lockheed Martin Red Team
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