---
id: CVE-2026-92374
title: >-
  Privilege Escalation via Insecure Package Handling in TeamViewer Full Client
  and Host for macOS
summary: >-
  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…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-367
vendor: TeamViewer
product: Full Client
affected:
  - full_client < 15.83
  - full_client >= 14.7.0 < 14.7.48868
  - full_client >= 13.2.0 < 13.2.154007
  - Host < 15.83
  - Host >= 14.7.0 < 14.7.48868
  - Host >= 13.2.0 < 13.2.154007
published: '2026-10-27'
updated: '2026-10-27'
sourceUpdated: '2026-10-27T15:09:25.189Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-92374'
references:
  - url: >-
      https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1011/
tags:
  - cve.org
ingestedAt: '2026-10-27T16:11:59.463Z'
---

## Overview

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.

## Affected

- `full_client < 15.83`
- `full_client >= 14.7.0 < 14.7.48868`
- `full_client >= 13.2.0 < 13.2.154007`
- `Host < 15.83`
- `Host >= 14.7.0 < 14.7.48868`
- `Host >= 13.2.0 < 13.2.154007`

## Remediation

Update to the latest available version.