CVE-2026-23572
HIGHCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2Description
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.
Analysis
Improper access control in TeamViewer clients (Windows, macOS, Linux) before version 15.74.5 permits authenticated remote users to circumvent confirmation-based access restrictions during active sessions. An attacker with valid remote session credentials can gain unauthorized access without triggering the expected local confirmation prompt, requiring only prior authentication via ID/password, session link, or Easy Access.
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Remediation
Within 24 hours: Inventory all TeamViewer installations across the organization and identify systems running versions prior to 15.74.5. Within 7 days: Implement network monitoring to detect suspicious TeamViewer session activity and restrict TeamViewer usage to defined administrative users only. …
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External POC / Exploit Code
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