Improper path validation in the local IPC service of TeamViewer Full Client and Host on Windows, Linux, and macOS prior to version 15.82 allows a local authenticated user with low privileges to perform arbitrary file writes with elevated privileges (NT AUTHORITY/SYSTEM \ root). By sending crafted IPC commands to the local service daemon, an attacker could manipulate file paths, leading to local privilege escalation.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Teamviewer Host | — | Upgrade TeamViewer Host to the latest version | Oct 20, 2026 | Sep 29, 2026 |
| Teamviewer Remote | — | Upgrade TeamViewer Remote to the latest version | Oct 20, 2026 | Sep 29, 2026 |
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