CVE-2026-12703

HIGH CVSS 3.1: 8.0 EPSS 0.23%
Updated Jul 30, 2026
TeamViewer
Parameter Value
CVSS 8.0 (HIGH)
Affected Versions before 15.80
Type CWE-288 (Authentication Bypass Using Alternate Path)
Vendor TeamViewer
Public PoC No

TeamViewer Full Client and Host for macOS before version 15.80 contain a business logic error that can allow an authenticated attacker to bypass a configured 2FA for Connections approval flow via Unattended Access and establish a remote connection to an affected macOS host.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1