Vulnerability Description
A weakness has been identified in TeamSpeak 3 Server up to 3.13.7. This affects the function process_resend_queue of the component Connection State Management. This manipulation causes use after free. The attack may be initiated remotely. Upgrading to version 3.13.8 is able to mitigate this issue. The affected component should be upgraded.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- 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/366314
- https://vuldb.com/vuln/366314/cti
- https://www.teamspeak.com/en/downloads/#server
FAQ
What is CVE-2026-4390?
CVE-2026-4390 is a vulnerability with a CVSS score of 5.4 (MEDIUM). A weakness has been identified in TeamSpeak 3 Server up to 3.13.7. This affects the function process_resend_queue of the component Connection State Management. This manipulation causes use after free....
How severe is CVE-2026-4390?
CVE-2026-4390 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-4390?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.