CVE-2026-92370: TeamViewer Full Client access control bypass in session establishment

CVE-2026-92370 · Severity: high · CVSS 8.8 · Published 2026-09-29

TeamViewer is remote access software that allows users to connect to and control other computers. This vulnerability lets an authenticated attacker bypass permission settings configured by the victim and perform actions the user explicitly disabled, potentially leading to unauthorized control or malicious code execution on the target system. The attack requires the victim to accept a remote connection request.

Technologies: Teamviewer Full Client, Teamviewer Host. Vendors: Teamviewer.

Quick answers

Is CVE-2026-92370 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-92370 being exploited in the wild.
How severe is CVE-2026-92370?
High severity, with a CVSS score of 8.8, published 29 September 2026.
Which products and versions are affected?
Teamviewer Full Client Prior to 15.82; legacy versions 15.64, 14.7, 13.2 on Windows; Teamviewer Host Prior to 15.82; legacy versions 15.64, 14.7, 13.2 on Windows.
Is there a fix for CVE-2026-92370?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-92370 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-92370?
Check whether you run Teamviewer Full Client or Teamviewer Host at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An improper access control flaw (CWE-284) in TeamViewer Full Client and Host on Windows, Linux, and macOS allows an authenticated remote attacker to modify access control parameters during session establishment to bypass user-configured restrictions. The vulnerability requires no user interaction beyond accepting a connection, and affects versions prior to 15.82, with remote code execution possible depending on which restricted features are bypassed.

Affected products

  • TeamViewer Full Client Prior to 15.82; legacy versions 15.64, 14.7, 13.2 on Windows
  • TeamViewer Host Prior to 15.82; legacy versions 15.64, 14.7, 13.2 on Windows

Timeline

  • 2026-09-29: disclosed

References

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