All vulnerabilities
CVE-2026-92374

Privilege Escalation via Insecure Package Handling in TeamViewer Full Client and Host for macOS

TeamViewer Full Client
Open in ThreatlineRecord JSON
CVSS
7.8High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed in15.83Also 14.7.48868, 13.2.154007CVE List
Published27 Oct 2026Updated 27 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Reports 1

1 outlet mention it. Reports are not confirmation; each links to its source.

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.

Text from CVE List

Affected versions 6

  • Full Clientaffected: all versions before 15.83CVE List
  • Full Clientaffected: 14.7.0 before 14.7.48868CVE List
  • Full Clientaffected: 13.2.0 before 13.2.154007CVE List
  • Hostaffected: all versions before 15.83CVE List
  • Hostaffected: 14.7.0 before 14.7.48868CVE List
  • Hostaffected: 13.2.0 before 13.2.154007CVE List

References 1