CVE-2026-23571 Command Injection in 1E-Nomad-RunPkgStatusRequest Instruction in TeamViewer DEX

Medium 6.8 Published 29 Jan 2026 Updated 29 Jan 2026

Authenticated attackers with actioner privilege can execute arbitrary elevated commands on connected hosts via input injection in TeamViewer DEX.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-23571?

CVE-2026-23571 is a medium-severity command injection vulnerability in TeamViewer DEX, published on 29 Jan 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

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.

Weakness: CWE-20

Which versions are affected by CVE-2026-23571?

It affects 1 product.

Products include Teamviewer Digital Employee Experience.

How do I fix CVE-2026-23571?

No fix has been published for CVE-2026-23571 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-23571 being exploited?

There is no known exploitation of CVE-2026-23571 in the wild and no public exploit code.

Sources

Also known as GHSA-54qv-2399-4h2x.