TeamViewer Vulnerabilities: Critical Flaws Fixed

**Executive Summary:** The report details CVE-2026-16444, a high-severity path-traversal vulnerability in TeamViewer desktop clients that permits an authenticated remote-session participant to write files outside intended locations (fixed in TeamViewer 15.81.5); it describes affected versions, technical impact (arbitrary file writes and potential code execution depending on privileges), mitigation steps (patching, MFA, limiting file transfers, monitoring), and notes no known exploitation in the wild at disclosure.