CVE-2026-4390
MEDIUM EPSS 17.3%
Published May 27, 20261mo ago · Modified Jun 17, 20262w ago
5.3 CVSS 4.0
Published May 27, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
17.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 2
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety
CWE-416 Use After Free Memory Safety
References 5
- files.teamspeak-services.com https://files.teamspeak-services.com/docs/security/TS-SA-2026-001.html
- modzero.com https://modzero.com/en/advisories/mz-26-01-teamspeak/
- vuldb.com https://vuldb.com/vuln/366314
- vuldb.com https://vuldb.com/vuln/366314/cti
- teamspeak.com https://www.teamspeak.com/en/downloads/#server
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.