CVE-2026-4392 MEDIUM

CVE-2026-4392: TeamSpeak 3 Server clientek Handshake assertion

Vendor N/A
Product TeamSpeak 3 Server
Weakness CWE-617
Published May 27, 2026
Last update May 28, 2026
View on NVD All CVEs

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 27, 2026 CVE published
May 28, 2026 Record updated