What’s Vulnerable › Vulnerabilities
CVE-2026-23572: Improper Access Control in TeamViewer clients
- Severity: high (CVSS 7.2 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-02-05 · updated 2026-06-17
- Weakness: CWE-863
Description
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.
Affected products
- TeamViewer ONE: before 15.74.5 — fixed in 15.74.5
- TeamViewer Remote: before 15.74.5 — fixed in 15.74.5
- TeamViewer Tensor: before 15.74.5 — fixed in 15.74.5
How to fix
Upgrade to a fixed version: TeamViewer ONE 15.74.5; TeamViewer Remote 15.74.5; TeamViewer Tensor 15.74.5. Check the vendor advisory for mitigations.
References
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