TeamViewer clients before 15.83 affected by vulnerabilities, Canada warns
Original title: TeamViewer security advisory (AV26-1093)
Windows, Linux and macOS clients and the Android app before 15.8.3 are listed, with no CVEs named.
The Canadian Centre for Cyber Security issued advisory AV26-1093 on October 28, 2026. As of October 27, TeamViewer Full Client and Host on Windows, Linux and macOS, Host, and Portable for Windows are affected in versions before 15.83, and the Android Remote Control App before 15.8.3. The centre urges administrators to review TeamViewer’s security updates and bulletins and apply necessary updates. Impact and exploitation are not described.
Unconfirmed: The Canadian notice does not identify the flaws, fixed versions, or any exploitation.
- The advisory serial is AV26-1093, dated October 28, 2026.
- Desktop Full Client, Host and Portable builds before 15.83 are affected.
- The Android Remote Control App is affected before 15.8.3.
- The notice points to TeamViewer client and Remote Management add-on updates.
| Product | Affected |
|---|---|
| TeamViewer Full Client & Host | Prior to 15.83 on Windows, Linux and macOS |
| TeamViewer Host | Prior to 15.83 on Windows, Linux and macOS |
| TeamViewer Portable | Prior to 15.83 on Windows |
| TeamViewer Remote Control App | Prior to 15.8.3 on Android |
- 1.Review TeamViewer’s linked security updates and apply necessary client updates.
- Vendors
- TeamViewer
- Organizations
- Canadian Centre for Cyber Security
- Countries
- Canada
From the original article
1 min read at cyber.gc.ca
Serial number: AV26-1093 Date: October 28, 2026 As of October 27, 2026, TeamViewer is affected by vulnerabilities in the following products: TeamViewer Full Client & Host (Windows) Prior to 15. 83 TeamViewer Full Client & Host (Linux) Prior to 15. 83 TeamViewer Full Client & Host (macOS) Prior to 15.
cyber.gc.ca
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