{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-4252",
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "state": "PUBLISHED",
        "assignerShortName": "VulDB",
        "dateReserved": "2026-03-16T06:16:02.051Z",
        "datePublished": "2026-03-16T16:32:10.508Z",
        "dateUpdated": "2026-03-16T18:07:41.022Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
                "shortName": "VulDB",
                "dateUpdated": "2026-03-16T16:32:10.508Z"
            },
            "title": "Tenda AC8 IPv6 check_is_ipv6 ip address for authentication",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "cweId": "CWE-291",
                            "lang": "en",
                            "description": "Reliance on IP Address for Authentication"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "cweId": "CWE-287",
                            "lang": "en",
                            "description": "Improper Authentication"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Tenda",
                    "product": "AC8",
                    "versions": [
                        {
                            "version": "16.03.50.11",
                            "status": "affected"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:o:tenda:ac8_firmware:*:*:*:*:*:*:*:*"
                    ],
                    "modules": [
                        "IPv6 Handler"
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A vulnerability was identified in Tenda AC8 16.03.50.11. Affected by this issue is the function check_is_ipv6 of the component IPv6 Handler. The manipulation leads to reliance on ip address for authentication. It is possible to initiate the attack remotely. The exploit is publicly available and might be used."
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "version": "4.0",
                        "baseScore": 9.3,
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
                        "baseSeverity": "CRITICAL"
                    }
                },
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "baseScore": 9.8,
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:R",
                        "baseSeverity": "CRITICAL"
                    }
                },
                {
                    "cvssV3_0": {
                        "version": "3.0",
                        "baseScore": 9.8,
                        "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:R",
                        "baseSeverity": "CRITICAL"
                    }
                },
                {
                    "cvssV2_0": {
                        "version": "2.0",
                        "baseScore": 10,
                        "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:W/RC:UR"
                    }
                }
            ],
            "timeline": [
                {
                    "time": "2026-03-16T00:00:00.000Z",
                    "lang": "en",
                    "value": "Advisory disclosed"
                },
                {
                    "time": "2026-03-16T01:00:00.000Z",
                    "lang": "en",
                    "value": "VulDB entry created"
                },
                {
                    "time": "2026-03-16T07:21:15.000Z",
                    "lang": "en",
                    "value": "VulDB entry last update"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "DigitalAndrew (VulDB User)",
                    "type": "reporter"
                }
            ],
            "references": [
                {
                    "url": "https://vuldb.com/?id.351210",
                    "name": "VDB-351210 | Tenda AC8 IPv6 check_is_ipv6 ip address for authentication",
                    "tags": [
                        "vdb-entry",
                        "technical-description"
                    ]
                },
                {
                    "url": "https://vuldb.com/?ctiid.351210",
                    "name": "VDB-351210 | CTI Indicators (IOB, IOC, IOA)",
                    "tags": [
                        "signature",
                        "permissions-required"
                    ]
                },
                {
                    "url": "https://vuldb.com/?submit.771759",
                    "name": "Submit #771759 | Tenda AC8 V5 V16.03.50.11 Authentication Bypass Issues",
                    "tags": [
                        "third-party-advisory"
                    ]
                },
                {
                    "url": "https://github.com/digitalandrew/tenda_ac8_v5/blob/main/poc_ipv6_auth_bypass.py",
                    "tags": [
                        "exploit"
                    ]
                },
                {
                    "url": "https://www.tenda.com.cn/",
                    "tags": [
                        "product"
                    ]
                }
            ]
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-03-16T18:07:31.177772Z",
                                "id": "CVE-2026-4252",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-03-16T18:07:41.022Z"
                }
            }
        ]
    }
}