Input validation error in Digital Employee Experience (DEX) Client for Windows - CVE-2026-23566

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Main Vulnerability Database Vulnerabilities #VU122140

Input validation error in Digital Employee Experience (DEX) Client for Windows - CVE-2026-23566

Published: January 30, 2026


Vulnerability identifier: #VU122140
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-23566
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vendor: TeamViewer
Affected software:
Digital Employee Experience (DEX) Client for Windows

Detailed vulnerability description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the Log injection issue in Content Distribution Service UDP Handler. A remote attacker on the local network can send specially crafted data to the UDP network handler and impact log integrity and nonrepudiation.


How to mitigate CVE-2026-23566

Install updates from vendor's website.

Sources