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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Exploitation poc

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Teamspeak 3 Server
  • Teamspeak 3 Server

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References
Link Providers
https://files.teamspeak-services.com/docs/security/TS-SA-2026-001.html cve-icon cve-icon
https://modzero.com/en/advisories/mz-26-01-teamspeak/ cve-icon cve-icon
https://vuldb.com/vuln/366315 cve-icon cve-icon
https://vuldb.com/vuln/366315/cti cve-icon cve-icon
https://www.teamspeak.com/en/downloads/#server cve-icon cve-icon
History

Wed, 27 May 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 27 May 2026 17:45:00 +0000

Type Values Removed Values Added
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.
Title TeamSpeak 3 Server ECC Key heap-based overflow
First Time appeared Teamspeak 3 Server
Teamspeak 3 Server teamspeak 3 Server
Weaknesses CWE-119
CWE-122
CPEs cpe:2.3:a:teamspeak_3_server:teamspeak_3_server:*:*:*:*:*:*:*:*
Vendors & Products Teamspeak 3 Server
Teamspeak 3 Server teamspeak 3 Server
References
Metrics cvssV2_0

{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:OF/RC:C'}

cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C'}

cvssV3_1

{'score': 5.3, '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'}

cvssV4_0

{'score': 6.9, '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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-05-27T16:45:07.874Z

Updated: 2026-05-27T18:46:24.200Z

Reserved: 2026-03-18T15:05:58.566Z

Link: CVE-2026-4391

cve-icon Vulnrichment

Updated: 2026-05-27T18:46:19.063Z

cve-icon NVD

Status : Deferred

Published: 2026-05-27T18:16:28.607

Modified: 2026-05-27T19:49:48.143

Link: CVE-2026-4391

cve-icon Redhat

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