Description
TeamViewer Full Client and Host for macOS before version 15.80 contain a business logic error that can allow an authenticated attacker to bypass a configured 2FA for Connections approval flow via Unattended Access and establish a remote connection to an affected macOS host.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| TeamViewer | Remote | 15.00 – < 15.80 | 15.80 |
| TeamViewer | Tensor | 15.00 – < 15.80 | 15.80 |
| TeamViewer | ONE | 15.00 – < 15.80 | 15.80 |
Advisories 1
- WID-SEC-2026-2563 TeamViewer: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Jul 29, 2026