What is CVE-2025-64990?

CVE-2025-64990 is a medium-severity vulnerability in Teamviewer Dex, classified under Improper Input Validation. CVSS score: 6.8/10. Published 2025-12-11.

How severe is CVE-2025-64990?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Improper input validation in Teamviewer Dex

CVE-2025-64990

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.007 (50.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H.

Affected products

Teamviewer Dex — versions 0
Teamviewer Digital_employee_experience

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

psirt@teamviewer.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-64990?: CVE-2025-64990 is a medium-severity vulnerability in Teamviewer Dex, classified under Improper Input Validation. CVSS score: 6.8/10. Published 2025-12-11.
How severe is CVE-2025-64990?: Medium severity. CVSS v3 base score is 6.8 out of 10.