{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-4392",
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "state": "PUBLISHED",
        "assignerShortName": "VulDB",
        "dateReserved": "2026-03-18T15:06:05.814Z",
        "datePublished": "2026-05-27T17:00:09.695Z",
        "dateUpdated": "2026-05-28T15:04:08.513Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
                "shortName": "VulDB",
                "dateUpdated": "2026-05-27T17:00:09.695Z"
            },
            "title": "TeamSpeak 3 Server clientek Handshake assertion",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "cweId": "CWE-617",
                            "lang": "en",
                            "description": "Reachable Assertion"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "n/a",
                    "product": "TeamSpeak 3 Server",
                    "versions": [
                        {
                            "version": "3.13.0",
                            "status": "affected"
                        },
                        {
                            "version": "3.13.1",
                            "status": "affected"
                        },
                        {
                            "version": "3.13.2",
                            "status": "affected"
                        },
                        {
                            "version": "3.13.3",
                            "status": "affected"
                        },
                        {
                            "version": "3.13.4",
                            "status": "affected"
                        },
                        {
                            "version": "3.13.5",
                            "status": "affected"
                        },
                        {
                            "version": "3.13.6",
                            "status": "affected"
                        },
                        {
                            "version": "3.13.7",
                            "status": "affected"
                        },
                        {
                            "version": "3.13.8",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:a:teamspeak_3_server:teamspeak_3_server:*:*:*:*:*:*:*:*"
                    ],
                    "modules": [
                        "clientek Handshake Handler"
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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."
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "version": "4.0",
                        "baseScore": 6.9,
                        "vectorString": "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",
                        "baseSeverity": "MEDIUM"
                    }
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                    "cvssV3_1": {
                        "version": "3.1",
                        "baseScore": 5.3,
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C",
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                    }
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                        "version": "3.0",
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                {
                    "cvssV2_0": {
                        "version": "2.0",
                        "baseScore": 5,
                        "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:OF/RC:C"
                    }
                }
            ],
            "timeline": [
                {
                    "time": "2026-05-27T00:00:00.000Z",
                    "lang": "en",
                    "value": "Advisory disclosed"
                },
                {
                    "time": "2026-05-27T02:00:00.000Z",
                    "lang": "en",
                    "value": "VulDB entry created"
                },
                {
                    "time": "2026-05-27T18:27:22.000Z",
                    "lang": "en",
                    "value": "VulDB entry last update"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Michael Imfeld (modzero)",
                    "type": "finder"
                }
            ],
            "references": [
                {
                    "url": "https://vuldb.com/vuln/366316",
                    "name": "VDB-366316 | TeamSpeak 3 Server clientek Handshake assertion",
                    "tags": [
                        "vdb-entry",
                        "technical-description"
                    ]
                },
                {
                    "url": "https://vuldb.com/vuln/366316/cti",
                    "name": "VDB-366316 | CTI Indicators (IOB, IOC, IOA)",
                    "tags": [
                        "signature",
                        "permissions-required"
                    ]
                },
                {
                    "url": "https://modzero.com/en/advisories/mz-26-01-teamspeak/",
                    "tags": [
                        "related"
                    ]
                },
                {
                    "url": "https://files.teamspeak-services.com/docs/security/TS-SA-2026-001.html",
                    "tags": [
                        "related"
                    ]
                },
                {
                    "url": "https://www.teamspeak.com/en/downloads/#server",
                    "tags": [
                        "patch"
                    ]
                }
            ]
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-05-28T15:03:40.600418Z",
                                "id": "CVE-2026-4392",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-05-28T15:04:08.513Z"
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}