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.

CVSS v3 5.3 MEDIUM
CVSS v2.0 5.0 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://files.teamspeak-services.com/docs/security/TS-SA-2026-001.html
https://modzero.com/en/advisories/mz-26-01-teamspeak/
https://vuldb.com/vuln/366316
https://vuldb.com/vuln/366316/cti
https://www.teamspeak.com/en/downloads/#server

Configurations

No configuration.

History

27 May 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-27 18:16

Updated : 2026-05-27 19:49

NVD link : CVE-2026-4392

Mitre link : CVE-2026-4392

CVE.ORG link : CVE-2026-4392

JSON object : View

Products Affected

No product.

CWE

CWE-617

Reachable Assertion

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