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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-19743

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

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Status
Published
Published
Updated
Assigning organization
TV

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

TeamViewer Full Client

Default version status: unaffected

  • 15.0 to < 15.82affected
  • 15.64.0 (Legacy Windows 7 & 8) to < 15.64.8 (Legacy Windows 7 & 8)affected
  • 14.7.0 (Windows) to < 14.7.48855 (Windows)affected
  • 13.2.0 (Windows) to < 13.2.36230 (Windows)affected
  • 14.7.0 (Linux) to < 14.7.48855 (Linux)affected
  • 13.2.0 (Linux) to < 13.2.153995 (Linux)affected
  • 14.7.0 (MacOS) to < 14.7.48855 (MacOS)affected
  • 13.2.0 (MacOS) to < 13.2.153994 (MacOS)affected

TeamViewer Host

Default version status: unaffected

  • 15.0 to < 15.82affected
  • 15.64.0 (Legacy Windows 7 & 8) to < 15.64.8 (Legacy Windows 7 & 8)affected
  • 14.7.0 (Windows) to < 14.7.48855 (Windows)affected
  • 13.2.0 (Windows) to < 13.2.36230 (Windows)affected
  • 14.7.0 (Linux) to < 14.7.48855 (Linux)affected
  • 13.2.0 (Linux) to < 13.2.153995 (Linux)affected
  • 14.7.0 (MacOS) to < 14.7.48855 (MacOS)affected
  • 13.2.0 (MacOS) to < 13.2.153994 (MacOS)affected

References