CVE-2026-16444Improper Validation of File Paths in TeamViewer Desktop Clients
Updated under an hour ago ()
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It affects TeamViewer Full Client, Host, QuickSupport & Portable and 7 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-73
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- TV
- NVD analysis
- Deferred
- Record last updated
- Aug 27, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
TeamViewer Full Client, Host, QuickSupport & Portable teamviewer:full_client_host_quicksupport_and_portable (from the name) | from 15.0 before 15.81.5 | CNA record |
TeamViewer Full Client, Host, QuickSupport & Portable (for Windows 7 & 8) teamviewer:full_client_host_quicksupport_and_portable_for_windows_7_and_8 (from the name) | from 15.64.0 before 15.64.7 | CNA record |
TeamViewer Full Client, Host, QuickSupport (v14 for Windows) teamviewer:full_client_host_quicksupport_v14_for_windows (from the name) | from 14.0 before 14.7.48833 | CNA record |
TeamViewer Full Client, Host, QuickSupport (v14 for Linux) teamviewer:full_client_host_quicksupport_v14_for_linux (from the name) | from 14.0 before 14.7.48838 | CNA record |
TeamViewer Full Client, Host, QuickSupport (v14 for macOS) teamviewer:full_client_host_quicksupport_v14_for_macos (from the name) | from 14.0 before 14.7.48838 | CNA record |
TeamViewer Full Client, Host, QuickSupport & Portable (v13 for Windows) teamviewer:full_client_host_quicksupport_and_portable_v13_for_windows (from the name) | from 13.0 before 13.2.36229 | CNA record |
TeamViewer Full Client, Host, QuickSupport (v13 for Linux) teamviewer:full_client_host_quicksupport_v13_for_linux (from the name) | from 13.0 before 13.2.153978 | CNA record |
TeamViewer Full Client, Host, QuickSupport (v13 for macOS) teamviewer:full_client_host_quicksupport_v13_for_macos (from the name) | from 13.0 before 13.2.153981 | CNA record |
References
- https://www.teamviewer.com/de/resources/trust-center/security-bulletins/tv-2026-1008/
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.