Improper Authentication in TeamViewer products - CVE-2026-92376

Vulnerability identifier: #VU158330

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-92376

CWE-ID: CWE-287

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to execute arbitrary code with SYSTEM privileges.

The vulnerability exists due to improper authentication in the IPC mechanism of TeamViewer Remote Management Monitoring for Windows when establishing communication with the IPC broker. A local user can impersonate the IPC broker and cause the Monitoring service to execute arbitrary code with SYSTEM privileges.

TeamViewer Remote Full Client for Windows
TeamViewer Host for macOS
TeamViewer Full Client for macOS
TeamViewer Host for Linux
TeamViewer Full Client for Linux
TeamViewer Remote Host for Windows

Install security update from vendor's website.

TeamViewer Remote Full Client for Windows - addressed in versions 13.2.36231, 14.7.48868, 15.64.10, 15.83
TeamViewer Remote Host for Windows - addressed in versions 13.2.36231, 14.7.48868, 15.64.10, 15.83
TeamViewer Host for macOS - addressed in versions 13.2.154007, 14.7.259386, 15.83
TeamViewer Full Client for macOS - addressed in versions 13.2.154007, 14.7.259386, 15.83
TeamViewer Host for Linux - addressed in versions 13.2.154008, 14.7.48868, 15.83
TeamViewer Full Client for Linux - addressed in versions 13.2.154008, 14.7.48868, 15.83

• https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1012/

• Multiple vulnerabilities in TeamViewer Client and Host