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    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.

    Published:May 27, 2026
    Last Modified:May 27, 2026
    EPS:May 27, 2026
    EPSS Score:
    CVSS Score:5.4

    Affected Products

    Vendor
    Teamspeak 3 Server
    Product
    Teamspeak 3 Server

    Exploits

    https://github.com/born0monday/teamspeak3-vulnerabilities

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High