RCE in Teamviewer Full Client
CVE-2026-19042
A command injection vulnerability in TeamViewer Full Client and Host for Linux prior to version 15.81.5 allows a remote attacker to execute arbitrary commands in the context of the current user via a specially crafted URL sent through the out-of-session chat feature. Exploitation requires user interaction by clicking the malicious link.
Vulnerability class: Command Injection (OS Command Injection)
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
References
- psirt@teamviewer.com (vendor-advisory)
Frequently asked questions
- What is CVE-2026-19042?
- CVE-2026-19042 is a high-severity vulnerability in Teamviewer Full Client, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-08-26.
- How severe is CVE-2026-19042?
- High severity. CVSS v3 base score is 8.8 out of 10.