{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-16876",
        "assignerOrgId": "f2760a35-e0d8-4637-ac4c-cc1a2de3e282",
        "state": "PUBLISHED",
        "assignerShortName": "NEC",
        "dateReserved": "2026-07-24T04:35:25.244Z",
        "datePublished": "2026-09-07T00:48:01.015Z",
        "dateUpdated": "2026-09-07T00:48:01.015Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "f2760a35-e0d8-4637-ac4c-cc1a2de3e282",
                "shortName": "NEC",
                "dateUpdated": "2026-09-07T00:48:01.015Z"
            },
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-306",
                            "description": "CWE-306: Missing Authentication for Critical Function",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "NEC Corporation",
                    "product": "UNIVERGE IX-R/IX-V",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "All versions from Ver1.1 through Ver1.3, All versions from Ver1.4.21 through Ver1.4.28 and Ver1.5.23"
                        }
                    ],
                    "defaultStatus": "unknown"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "An authentication bypass vulnerability exists in the WebGUI of Series UNIVERGE IX-R/IX-V. A user could bypass authentication and execute arbitrary CLI commands by tampering with WebGUI messages and sending them to the device via internet.",
                    "supportingMedia": [
                        {
                            "type": "text/html",
                            "base64": false,
                            "value": "An authentication bypass vulnerability exists in the WebGUI of Series UNIVERGE IX-R/IX-V. A user could bypass authentication and execute arbitrary CLI commands by tampering with WebGUI messages and sending them to the device via internet."
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://jpn.nec.com/security-info/secinfo/nv26-005_en.html"
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "HIGH",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "LOW",
                        "subAvailabilityImpact": "NONE",
                        "version": "4.0",
                        "baseSeverity": "CRITICAL",
                        "baseScore": 9.3,
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Kojiro Enokida of Sophos Ltd.",
                    "user": "00000000-0000-4000-9000-000000000000",
                    "type": "reporter"
                }
            ],
            "source": {
                "discovery": "EXTERNAL"
            },
            "x_generator": {
                "engine": "Vulnogram 0.2.0"
            }
        }
    }
}