CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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
Lifecycle Timeline
1DescriptionNVD
A vulnerability was detected in TeamSpeak 3 Server up to 3.13.7. This issue affects some unknown processing of the component clientek Handshake Handler. Performing a manipulation of the argument proof results in reachable assertion. Remote exploitation of the attack is possible. Upgrading to version 3.13.8 is capable of addressing this issue. Upgrading the affected component is recommended.
AnalysisAI
Reachable assertion in TeamSpeak 3 Server's client handshake handler allows remote unauthenticated attackers to crash the server by manipulating the 'proof' argument during connection setup, resulting in a denial of service. All versions from 3.13.0 through 3.13.7 are affected; the issue was independently researched by modzero and disclosed via TeamSpeak security advisory TS-SA-2026-001. …
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-32592
GHSA-jfq9-pq7p-655w