What is CVE-2025-64991?

CVE-2025-64991 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-2025-64991?

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

RCE in Teamviewer Dex

CVE-2025-64991

A command injection vulnerability was discovered in TeamViewer DEX (former 1E DEX), specifically within the 1E-PatchInsights-Deploy instruction prior V15. Improper input validation, allowing authenticated attackers with Actioner privileges…

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

EPSS: 0.008 (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
CWE-77 — Command Injection

References

psirt@teamviewer.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-64991?: CVE-2025-64991 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-2025-64991?: Medium severity. CVSS v3 base score is 6.8 out of 10.