Auth bypass in Teamviewer Dex (On-Premises)
CVE-2026-8381
A broken access control vulnerability exists in the TeamViewer DEX Platform (On‑Premises) prior version 9.2. Certain backend API endpoints do not correctly enforce authorization checks, allowing an authenticated user with low privileges to perform actions and access resources intended only for higher‑privileged roles. An attacker with low‑privileged credentials may exploit this to gain unauthorized access to administrative or sensitive functionality.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (12.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.001
Affected products
- Teamviewer Dex (On-Premises) — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-8381?
- CVE-2026-8381 is a medium-severity vulnerability in Teamviewer Dex (On-Premises), classified under Missing Authorization. CVSS score: 5.4/10. Published 2026-05-22.
- How severe is CVE-2026-8381?
- Medium severity. CVSS v3 base score is 5.4 out of 10.