{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-66086",
        "assignerOrgId": "63f92e9c-2193-4c24-98a9-93640392c3d3",
        "state": "PUBLISHED",
        "assignerShortName": "Unisoc",
        "dateReserved": "2026-07-24T02:05:12.603Z",
        "datePublished": "2026-10-12T01:28:35.334Z",
        "dateUpdated": "2026-10-15T18:08:53.064Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "vendor": "Unisoc (Shanghai) Technologies Co., Ltd.",
                    "product": "Modem",
                    "versions": [
                        {
                            "version": "T8100",
                            "status": "affected"
                        },
                        {
                            "version": "T9100",
                            "status": "affected"
                        },
                        {
                            "version": "UDX710",
                            "status": "affected"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the modem OTA stack, there is a possible stack-based buffer overflow due to improper validation of scheduling information in SIB1 messages. This could lead to remote code execution or denial of service with no additional execution privileges needed."
                }
            ],
            "references": [
                {
                    "url": "https://www.unisoc.com/en/support/product-security-bulletin/2109454821805424641"
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                        "baseScore": 8.3,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-121",
                            "cweId": "CWE-121",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "title": "Stack-based Buffer Overflow in Modem",
            "providerMetadata": {
                "orgId": "63f92e9c-2193-4c24-98a9-93640392c3d3",
                "shortName": "Unisoc",
                "dateUpdated": "2026-10-12T01:28:35.334Z"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-15T18:01:14.326188Z",
                                "id": "CVE-2026-66086",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "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": "2026-10-15T18:08:53.064Z"
                }
            }
        ]
    }
}