CVE-2026-4391 MEDIUM

CVE-2026-4391: TeamSpeak 3 Server ECC Key heap-based overflow

Vendor N/A
Product TeamSpeak 3 Server
Weakness CWE-122
Published May 27, 2026
Last update May 27, 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 security vulnerability has been detected in TeamSpeak 3 Server up to 3.13.7. This vulnerability affects unknown code of the component ECC Key Parser. Such manipulation leads to heap-based buffer overflow. The attack may be launched remotely. Upgrading to version 3.13.8 is able to resolve this issue. It is suggested to upgrade the affected component.

Key dates

02Disclosure timeline

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