TeamViewer < 13.2.154007 / 14.x < 14.7.48868 / 15.x < 15.83 Multiple Vulnerabilities (macOS) (TV-2026-1011)

high Nessus Plugin ID 377053

Synopsis

A remote access client on the remote macOS host is affected by multiple vulnerabilities.

Description

The version of TeamViewer installed on the remote macOS host is prior to 13.2.154007, 14.x prior to 14.7.48868, or 15.x prior to 15.83. It is, therefore, affected by multiple vulnerabilities as referenced in the TV-2026-1011 advisory:

- An out-of-bounds write vulnerability in the screen-image decoder of TeamViewer Full Client for Linux and macOS prior to version 15.83 allows a remote attacker to execute arbitrary code by supplying crafted screen-image data during a remote-control session. The vulnerability can also be exploited by persuading a user to open a specially crafted TeamViewer session recording (.tvs). (CVE-2026-92372)

- An integer overflow in the remote-control screen processing component of TeamViewer clients (Full Client, Portable and Remote Control App) prior to version 15.83 may allow a malicious remote host to cause a denial of service or, depending on the platform, potentially execute arbitrary code with the privileges of the viewer process. Exploitation requires a user to establish a remote-control session to an attacker-controlled or compromised host. (CVE-2026-111585)

- 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. (CVE-2026-92374)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade TeamViewer to version 13.2.154007, 14.7.48868, 15.83, or later.

See Also

http://www.nessus.org/u?31e95d8c

Plugin Details

Severity: High

ID: 377053

File Name: teamviewer_tv-2026-1011_macos.nasl

Version: 1.1

Type: Local

Agent: macosx

Published: 11/6/2026

Updated: 11/6/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.7

Percentile: 98.82

CVSS v2

Risk Factor: Critical

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-92372

CVSS v3

Risk Factor: High

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: cpe:/a:teamviewer:teamviewer

Required KB Items: installed_sw/TeamViewer, Host/MacOSX/Version

Patch Publication Date: 10/27/2026

Vulnerability Publication Date: 10/27/2026

Reference Information

CVE: CVE-2026-111585, CVE-2026-92372, CVE-2026-92374

CWE: 123, 190, 367

IAVA: 2026-A-1235