Improper Limitation of a Pathname to a Restricted Directory (Path Traversal) in TeamViewer Desktop Clients
Summary
| CVE | CVE-2026-19743 |
|---|---|
| State | PUBLISHED |
| Assigner | TV |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-29 16:17:07 UTC |
| Updated | 2026-09-30 16:17:12 UTC |
| Description | Improper path validation in the local IPC service of TeamViewer Full Client and Host on Windows, Linux, and macOS prior to version 15.82 allows a local authenticated user with low privileges to perform arbitrary file writes with elevated privileges (NT AUTHORITY/SYSTEM \ root). By sending crafted IPC commands to the local service daemon, an attacker could manipulate file paths, leading to local privilege escalation. |
Risk And Classification
Primary CVSS: v3.1 7.8 HIGH from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Problem Types: CWE-22 | CWE-22 CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | TeamViewer | Full Client | affected 15.0 15.82 custom | Windows, Linux, MacOS |
| CNA | TeamViewer | Full Client | affected 15.64.0 (Legacy Windows 7 & 8) 15.64.8 (Legacy Windows 7 & 8) custom | Windows, Linux, MacOS |
| CNA | TeamViewer | Full Client | affected 14.7.0 (Windows) 14.7.48855 (Windows) custom | Windows, Linux, MacOS |
| CNA | TeamViewer | Full Client | affected 13.2.0 (Windows) 13.2.36230 (Windows) custom | Windows, Linux, MacOS |
| CNA | TeamViewer | Full Client | affected 14.7.0 (Linux) 14.7.48855 (Linux) custom | Windows, Linux, MacOS |
| CNA | TeamViewer | Full Client | affected 13.2.0 (Linux) 13.2.153995 (Linux) custom | Windows, Linux, MacOS |
| CNA | TeamViewer | Full Client | affected 14.7.0 (MacOS) 14.7.48855 (MacOS) custom | Windows, Linux, MacOS |
| CNA | TeamViewer | Full Client | affected 13.2.0 (MacOS) 13.2.153994 (MacOS) custom | Windows, Linux, MacOS |
| CNA | TeamViewer | Host | affected 15.0 15.82 custom | Windows, Linux, MacOS |
| CNA | TeamViewer | Host | affected 15.64.0 (Legacy Windows 7 & 8) 15.64.8 (Legacy Windows 7 & 8) custom | Windows, Linux, MacOS |
| CNA | TeamViewer | Host | affected 14.7.0 (Windows) 14.7.48855 (Windows) custom | Windows, Linux, MacOS |
| CNA | TeamViewer | Host | affected 13.2.0 (Windows) 13.2.36230 (Windows) custom | Windows, Linux, MacOS |
| CNA | TeamViewer | Host | affected 14.7.0 (Linux) 14.7.48855 (Linux) custom | Windows, Linux, MacOS |
| CNA | TeamViewer | Host | affected 13.2.0 (Linux) 13.2.153995 (Linux) custom | Windows, Linux, MacOS |
| CNA | TeamViewer | Host | affected 14.7.0 (MacOS) 14.7.48855 (MacOS) custom | Windows, Linux, MacOS |
| CNA | TeamViewer | Host | affected 13.2.0 (MacOS) 13.2.153994 (MacOS) custom | Windows, Linux, MacOS |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1010 | [email protected] | www.teamviewer.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: We thank Timo De Clercq & 0x_alibabas (Giuliano Sanfins) for the discovery and responsible disclosure. (en)
Additional Advisory Data
Solutions
CNA: Update to the latest version.
There are currently no legacy QID mappings associated with this CVE.