CVE-2026-19743

Improper Limitation of a Pathname to a Restricted Directory (Path Traversal) in TeamViewer Desktop Clients

Published Sep 29, 2026 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Update to the latest version.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Teamviewer
Teamviewer full Client
Teamviewer host
Vendors & Products Teamviewer
Teamviewer full Client
Teamviewer host
Type Values Removed Values Added
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.
Title Improper Limitation of a Pathname to a Restricted Directory (Path Traversal) in TeamViewer Desktop Clients
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TV
Published
Updated
Sep 30, 2026, 3:28 PM
Reserved
Aug 13, 2026, 1:55 PM
Status
Deferred
Published
Sep 29, 2026, 4:17 PM
Modified
Sep 30, 2026, 4:17 PM