Vulnerability in TeamViewer Full Client

[ Description ]Official description

A time-of-check time-of-use (TOCTOU) race condition combined with improper symbolic link handling in the privileged helper of TeamViewer Full Client and Host prior to version 15.83 for macOS allows a local attacker with low privileges to bypass installer package verification and install a malicious package. Successful exploitation can lead to local privilege escalation to root.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund27 Oct 2026WID-SEC-2026-4193

  TeamViewer: Multiple vulnerabilities Translated from German

  CVE-2026-92372CVE-2026-92374CVE-2026-111585

[ References ]References

• www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1011