TeamSpeak 3 Server Connection State Management process_resend_queue use after free
Priority LOW 24CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0026 17th percentileScored 2026-11-07
Fix Fixed TeamSpeak 3 Server: 3.13.8
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | TeamSpeak 3 Server | 3.13.0; 3.13.1; 3.13.2; 3.13.3; 3.13.4; 3.13.5; 3.13.6; 3.13.7 | 3.13.8 | Patch available | CNA |
- TeamSpeak 3 Server Vendor— Affected 3.13.0; 3.13.1; 3.13.2; 3.13.3; 3.13.4; 3.13.5; 3.13.6; 3.13.7 Fixed in 3.13.8 Patch available CNA
CPE names CNA · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:teamspeak_3_server:teamspeak_3_server:*:*:*:*:*:*:*:* | — | — | — |
- cpe:2.3:a:teamspeak_3_server:teamspeak_3_server:*:*:*:*:*:*:*:* Versions — — ·—
Remediation
- Fix · CNA TeamSpeak 3 Server Fixed in 3.13.8
Timeline
- 2026-10-02 Threatist record created from CVE-2026-4390
- 2026-10-03 Alias added: GHSA-cr8m-87qj-3732
References
Sources
- CVE-2026-4390 · CVE Program
- CVE-2026-4390 · NVD
- FIRST EPSS
- GHSA-cr8m-87qj-3732 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences