What’s Vulnerable › Vulnerabilities
CVE-2026-19042: Command Injection in TeamViewer Desktop Client for Linux through Chat Link Handling
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.8% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-26 · updated 2026-09-01
- Weakness: CWE-78
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.
Affected products
- TeamViewer Full Client: from 15.0 before 15.81.5; from 14.0 before 14.7.488838; from 13.0 before 13.2.153978 — fixed in 13.2.153978, 14.7.488838, 15.81.5
- TeamViewer Host: from 15.0 before 15.81.5; from 14.0 before 14.7.488838; from 13.0 before 13.2.153978 — fixed in 13.2.153978, 14.7.488838, 15.81.5
How to fix
Upgrade to a fixed version: TeamViewer Full Client 13.2.153978, 14.7.488838, 15.81.5; TeamViewer Host 13.2.153978, 14.7.488838, 15.81.5. Check the vendor advisory for mitigations.
References
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