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CWE

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CVE-2026-4391

Published: May 27, 2026

Modified: May 27, 2026

PUBLISHED

CVSS v3.1

5.3

MEDIUM

Description

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.

Vendor	Product	Versions
n/a	TeamSpeak 3 Server	affected `3.13.0` affected `3.13.1` affected `3.13.2` affected `3.13.3` affected `3.13.4` +4 more versions

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

References

VDB-366315 | TeamSpeak 3 Server ECC Key heap-based overflow

vdb-entry

VDB-366315 | CTI Indicators (IOB, IOC)

signature

permissions-required

https://modzero.com/en/advisories/mz-26-01-teamspeak/

related

https://files.teamspeak-services.com/docs/security/TS-SA-2026-001.html

related

https://www.teamspeak.com/en/downloads/#server

patch

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