Auth bypass in Teamviewer One
CVE-2026-23572
Improper access control in the TeamViewer Full and Host clients (Windows, macOS, Linux) prior version 15.74.5 allows an authenticated user to bypass additional access controls with “Allow after confirmation” configuration in a remote session. An exploit could result in unauthorized access prior to local confirmation. The user needs to be authenticated for the remote session via ID/password, Session Link, or Easy Access as a prerequisite to exploit this vulnerability.
Vulnerability class: Broken Access Control
EPSS: 0.003 (20.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Teamviewer One — versions 0
- Teamviewer Remote — versions 0
- Teamviewer Tensor — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-23572?
- CVE-2026-23572 is a high-severity vulnerability in Teamviewer One, classified under Incorrect Authorization. CVSS score: 7.2/10. Published 2026-02-05.
- How severe is CVE-2026-23572?
- High severity. CVSS v3 base score is 7.2 out of 10.