{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-7964",
        "assignerOrgId": "030b2754-1501-44a4-bef8-48be86a33bf4",
        "state": "PUBLISHED",
        "assignerShortName": "Silabs",
        "dateReserved": "2025-07-21T17:44:17.730Z",
        "datePublished": "2026-01-30T15:02:53.825Z",
        "dateUpdated": "2026-01-30T15:36:46.637Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "defaultStatus": "unaffected",
                    "packageName": "GSDK",
                    "product": "Silicon Labs Zigbee Stack",
                    "repo": "https://github.com/SiliconLabs/gecko_sdk",
                    "vendor": "silabs.com",
                    "versions": [
                        {
                            "lessThanOrEqual": "4.4.6",
                            "status": "affected",
                            "version": "0",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "defaultStatus": "unaffected",
                    "packageName": "SiSDK",
                    "product": "Silicon Labs Zigbee Stack",
                    "repo": "https://github.com/SiliconLabs/simplicity_sdk",
                    "vendor": "silabs.com",
                    "versions": [
                        {
                            "lessThanOrEqual": "2025.6.1",
                            "status": "affected",
                            "version": "0",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "<div>After receiving a \n\n<span style=\"background-color: rgb(255, 255, 255);\">malformed 802.15.4 MAC Data Request</span>\n\n the Zigbee Coordinator sends a ‘network leave’ request to Zigbee router resulting in the Zigbee Router getting stuck in a non-rejoinable state. If a suitable parent is not available, the end devices will be unable to rejoin.&nbsp;A manual recommissioning is required to recover the Zigbee Router.</div>\n\n<br>"
                        }
                    ],
                    "value": "After receiving a \n\nmalformed 802.15.4 MAC Data Request\n\n the Zigbee Coordinator sends a ‘network leave’ request to Zigbee router resulting in the Zigbee Router getting stuck in a non-rejoinable state. If a suitable parent is not available, the end devices will be unable to rejoin. A manual recommissioning is required to recover the Zigbee Router."
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-153",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-153 Input Data Manipulation"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "attackVector": "NETWORK",
                        "baseScore": 9.2,
                        "baseSeverity": "CRITICAL",
                        "exploitMaturity": "NOT_DEFINED",
                        "privilegesRequired": "NONE",
                        "providerUrgency": "NOT_DEFINED",
                        "subAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "userInteraction": "NONE",
                        "valueDensity": "NOT_DEFINED",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H",
                        "version": "4.0",
                        "vulnAvailabilityImpact": "HIGH",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "vulnerabilityResponseEffort": "NOT_DEFINED"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-229",
                            "description": "CWE-229: Improper Handling of Values",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "030b2754-1501-44a4-bef8-48be86a33bf4",
                "shortName": "Silabs",
                "dateUpdated": "2026-01-30T15:02:53.825Z"
            },
            "references": [
                {
                    "tags": [
                        "vendor-advisory",
                        "permissions-required"
                    ],
                    "url": "https://community.silabs.com/068Vm00000dspiL"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "title": "Zigbee Router Denial of Service",
            "x_generator": {
                "engine": "Vulnogram 0.2.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-01-30T15:36:24.476564Z",
                                "id": "CVE-2025-7964",
                                "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": "2026-01-30T15:36:46.637Z"
                }
            }
        ]
    }
}