Answer in brief
CVE-2026-16444 records a Unknown severity vulnerability in Improper Validation of File Paths in TeamViewer Desktop Clients. The current sources do not mark it as known exploited. The current feed maps TeamViewer/Full Client, Host, QuickSupport & Portable (generic), TeamViewer/Full Client, Host, QuickSupport & Portable (for Windows 7 & 8) (generic), TeamViewer/Full Client, Host, QuickSupport & Portable (v13 for Windows) (generic), TeamViewer/Full Client, Host, QuickSupport (v13 for Linux) (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps TeamViewer/Full Client, Host, QuickSupport & Portable (generic), TeamViewer/Full Client, Host, QuickSupport & Portable (for Windows 7 & 8) (generic), TeamViewer/Full Client, Host, QuickSupport & Portable (v13 for Windows) (generic), TeamViewer/Full Client, Host, QuickSupport (v13 for Linux) (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| TeamViewer/Full Client, Host, QuickSupport & Portablegeneric | >=15.0 <15.81.5 | 15.81.5 |
| TeamViewer/Full Client, Host, QuickSupport & Portable (for Windows 7 & 8)generic | >=15.64.0 <15.64.7 | 15.64.7 |
| TeamViewer/Full Client, Host, QuickSupport & Portable (v13 for Windows)generic | >=13.0 <13.2.36229 | 13.2.36229 |
| TeamViewer/Full Client, Host, QuickSupport (v13 for Linux)generic | >=13.0 <13.2.153978 | 13.2.153978 |
| TeamViewer/Full Client, Host, QuickSupport (v13 for macOS)generic | >=13.0 <13.2.153981 | 13.2.153981 |
| TeamViewer/Full Client, Host, QuickSupport (v14 for Linux)generic | >=14.0 <14.7.48838 | 14.7.48838 |
| TeamViewer/Full Client, Host, QuickSupport (v14 for macOS)generic | >=14.0 <14.7.48838 | 14.7.48838 |
| TeamViewer/Full Client, Host, QuickSupport (v14 for Windows)generic | >=14.0 <14.7.48833 | 14.7.48833 |
Published upstream
Aug 26, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 26, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 26, 2026
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.
Quoted source text, attributed separately from HOL analysis.