Hoi
Falls ihr noch einen TS3 Server betreibt, solltet ihr den mal updaten. Ausserdem wird Teamspeak 3 2027 wohl leider EoL gehen. Schade.
Update Recommended for TeamSpeak 3 Server
CVE-2026-4390, CVE-2026-4391, CVE-2026-4392
Hello,
We have released TeamSpeak 3 Server version 3.13.8 to address several security vulnerabilities affecting earlier versions of the server software.
The vulnerabilities could allow remote attackers to cause denial-of-service conditions, including service instability or server restarts, through specially crafted network requests.
Customers running TeamSpeak 3 Server version 3.13.7 and below are advised to update to the latest version as soon as practical.
Impact
Vulnerabilities CVE-2026-4390
CVE-2026-4391
CVE-2026-4392
Severity High
Attack vector Both authenticated and unauthenticated scenarios depending on the affected component.
Affected versions
Affected TeamSpeak 3 Server 3.13.7 and below
Fixed TeamSpeak 3 Server 3.13.8
At this time, we are not aware of active exploitation affecting customer environments.
Recommended action
Please upgrade affected deployments to TeamSpeak 3 Server 3.13.8.
Resources
Downloads teamspeak.com/en/downloads/#server
Security advisory TS-SA-2026-001
Mitigation: If immediate updating is not possible, we recommend limiting unnecessary public exposure of affected server instances until the update can be applied.
We would like to thank Michael Imfeld and the modzero team for identifying these issues and responsibly disclosing them through a coordinated disclosure process.
For questions or assistance regarding this advisory or the update process, please contact the TeamSpeak support team at support@teamspeak.com.
On a side note, as part of the evolution of the TeamSpeak platform, TeamSpeak 3 will reach end of life at the end of December 2027. Additional details regarding future plans and transition guidance will be shared at a later date.
Please feel free to reach out if you have any questions in the meantime.
Regards,
TeamSpeak Security Team
Falls ihr noch einen TS3 Server betreibt, solltet ihr den mal updaten. Ausserdem wird Teamspeak 3 2027 wohl leider EoL gehen. Schade.
Update Recommended for TeamSpeak 3 Server
CVE-2026-4390, CVE-2026-4391, CVE-2026-4392
Hello,
We have released TeamSpeak 3 Server version 3.13.8 to address several security vulnerabilities affecting earlier versions of the server software.
The vulnerabilities could allow remote attackers to cause denial-of-service conditions, including service instability or server restarts, through specially crafted network requests.
Customers running TeamSpeak 3 Server version 3.13.7 and below are advised to update to the latest version as soon as practical.
Impact
Vulnerabilities CVE-2026-4390
CVE-2026-4391
CVE-2026-4392
Severity High
Attack vector Both authenticated and unauthenticated scenarios depending on the affected component.
Affected versions
Affected TeamSpeak 3 Server 3.13.7 and below
Fixed TeamSpeak 3 Server 3.13.8
At this time, we are not aware of active exploitation affecting customer environments.
Recommended action
Please upgrade affected deployments to TeamSpeak 3 Server 3.13.8.
Resources
Downloads teamspeak.com/en/downloads/#server
Security advisory TS-SA-2026-001
Mitigation: If immediate updating is not possible, we recommend limiting unnecessary public exposure of affected server instances until the update can be applied.
We would like to thank Michael Imfeld and the modzero team for identifying these issues and responsibly disclosing them through a coordinated disclosure process.
For questions or assistance regarding this advisory or the update process, please contact the TeamSpeak support team at support@teamspeak.com.
On a side note, as part of the evolution of the TeamSpeak platform, TeamSpeak 3 will reach end of life at the end of December 2027. Additional details regarding future plans and transition guidance will be shared at a later date.
Please feel free to reach out if you have any questions in the meantime.
Regards,
TeamSpeak Security Team
