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    "cveMetadata": {
        "cveId": "CVE-2023-4489",
        "assignerOrgId": "030b2754-1501-44a4-bef8-48be86a33bf4",
        "state": "PUBLISHED",
        "assignerShortName": "Silabs",
        "dateReserved": "2023-08-23T04:17:01.960Z",
        "datePublished": "2023-12-14T23:00:29.693Z",
        "dateUpdated": "2025-05-21T14:29:37.355Z"
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                    "product": "Z/IP Gateway SDK",
                    "vendor": "silabs.com",
                    "versions": [
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                            "lessThanOrEqual": "7.18.3",
                            "status": "affected",
                            "version": "0",
                            "versionType": "LessThan"
                        }
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                            "value": "<span style=\"background-color: rgb(255, 255, 255);\">The first S0 encryption key is generated with an uninitialized PRNG in Z/IP Gateway products running Silicon Labs Z/IP Gateway SDK v7.18.3 and earlier. </span><span style=\"background-color: rgb(255, 255, 255);\">This makes the first S0 key generated at startup predictable, potentially allowing network key prediction and unauthorized S0 network access.</span>\n\n<table><tbody><tr><td> </td></tr></tbody></table>"
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                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-59",
                    "descriptions": [
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                            "lang": "en",
                            "value": "CAPEC-59 Session Credential Falsification through Prediction"
                        }
                    ]
                }
            ],
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                        "attackComplexity": "HIGH",
                        "attackVector": "PHYSICAL",
                        "availabilityImpact": "HIGH",
                        "baseScore": 6.4,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                        "version": "3.1"
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                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
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            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-1279",
                            "description": "CWE-1279 Cryptographic Operations are run Before Supporting Units are Ready",
                            "lang": "en",
                            "type": "CWE"
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            ],
            "providerMetadata": {
                "orgId": "030b2754-1501-44a4-bef8-48be86a33bf4",
                "shortName": "Silabs",
                "dateUpdated": "2024-09-27T16:22:41.599Z"
            },
            "references": [
                {
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/0698Y00000buWj0QAE?operationContext=S1"
                },
                {
                    "url": "https://github.com/SiliconLabs/gecko_sdk"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "title": "Z/IP Gateway Use of Uninitialized PRNG when Generating S0 Encryption Key",
            "x_generator": {
                "engine": "Vulnogram 0.1.0-dev"
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        },
        "adp": [
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                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-02T07:31:05.899Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
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                        "url": "https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/0698Y00000buWj0QAE?operationContext=S1"
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                        "url": "https://github.com/SiliconLabs/gecko_sdk",
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            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-05-21T14:28:57.358361Z",
                                "id": "CVE-2023-4489",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
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                                        "Technical Impact": "total"
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                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                "title": "CISA ADP Vulnrichment",
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