CVE-2026-4392

A vulnerability was detected in TeamSpeak 3 Server up to 3.13.7. This issue affects some unknown processing of the component clientek Handshake Handler. Performing a manipulation of the argument proof results in reachable assertion. Remote exploitation of the attack is possible. Upgrading to version 3.13.8 is capable of addressing this issue. Upgrading the affected component is recommended.

Affected products

Teamspeak 3 Server

CVSS 4.0

6.9 MEDIUM

CVSS 3.1

5.3 MEDIUM

EPSS

0.4% (33th percentile)

Weakness

CWE-617

NVD status

Deferred

Published

2026-05-27