CVE-2026-19042
High
Description
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.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Full Client
PublishedAug 26, 2026
First seenAug 26, 2026
Weakness typeCWE-78OS command injection
How to fix
Update
- TeamViewer Full Client15.81.5, 14.7.488838, 13.2.153978 or later
- TeamViewer Host15.81.5, 14.7.488838, 13.2.153978 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| TeamViewer Full Client | 15.0 ≤ v < 15.81.5, 14.0 ≤ v < 14.7.488838, 13.0 ≤ v < 13.2.153978 | 15.81.5, 14.7.488838, 13.2.153978 |
| TeamViewer Host | 15.0 ≤ v < 15.81.5, 14.0 ≤ v < 14.7.488838, 13.0 ≤ v < 13.2.153978 | 15.81.5, 14.7.488838, 13.2.153978 |
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