CVE-2026-12703 — HIGH (8.0)

Vulnerability Description

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.

CVSS Score

8.0

HIGH

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-288

References

https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-

FAQ

What is CVE-2026-12703?

CVE-2026-12703 is a vulnerability with a CVSS score of 8.0 (HIGH). 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 Unat...

How severe is CVE-2026-12703?

CVE-2026-12703 has been rated HIGH with a CVSS base score of 8.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-12703?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.