CVE-2026-4390

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 2.0

5.5 MEDIUM

CVSS 3.1

5.4 MEDIUM

EPSS

0.3% (17th percentile)

Weakness

CWE-119, CWE-416

NVD status

Deferred

Published

2026-05-27