SB2026063025 - Improper access control in TeamViewer Full Client for Windows and macOS

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Main Vulnerability Database SB2026063025

SB2026063025 - Improper access control in TeamViewer Full Client for Windows and macOS

Published: June 30, 2026 Updated: July 1, 2026

Security Bulletin ID SB2026063025
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper access control (CVE-ID: N/A)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to compromise the confidentiality, integrity, or availability of the application.

The vulnerability exists due to improper access control in out-of-session chat functionality when handling chat interactions outside an active session. A remote attacker can interact with the out-of-session chat feature to compromise the confidentiality, integrity, or availability of the application.


Remediation

Install update from vendor's website.

References