CVE-2026-4391 | TeamSpeak 3 Server up to 3.13.7 ECC Key Parser heap-based overflow (MZ-26-01)

A vulnerability was found in TeamSpeak 3 Server up to 3.13.7 and classified as critical. This vulnerability affects unknown code of the component ECC Key Parser. Such manipulation leads to heap-based buffer overflow.

This vulnerability is traded as CVE-2026-4391. The attack may be launched remotely. There is no exploit available.

It is suggested to upgrade the affected component.