CVE-2026-16444
Improper Validation of File Paths in TeamViewer Desktop Clients
HIGH 7.5EPSS 0.3%
Improper neutralization of path traversal sequences in TeamViewer Desktop Clients prior Version 15.81.5 allows an authenticated remote session participant to write files to unintended locations on the local file system via file transfer or virtual file clipboard mechanisms. An attacker can leverage this behavior to achieve arbitrary file write and potentially execute code with the privileges of the affected user.
- Affected
- TeamViewer · Full Client, Host, QuickSupport & Portable · Full Client, Host, QuickSupport & Portable (for Windows 7 & 8) · Full Client, Host, QuickSupport (v14 for Windows) · Full Client, Host, QuickSupport (v14 for Linux) · Full Client, Host, QuickSupport (v14 for macOS) · Full Client, Host, QuickSupport & Portable (v13 for Windows)
- CVSS v3.1 TEAMVIEWER
- 7.5 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - EPSS
- 0.27% chance of exploitation in the next 30 days, 17th percentile
- Published
- 2026-08-26
- Updated
- 2026-08-27
Proof-of-concept exploits (1)
- jamir0quai/CVE-2026-164440★ · 2026-10-05