{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2021-20594",
        "ASSIGNER": "Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU; Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU firmware versions \"26\" and prior"
                                        },
                                        {
                                            "version_value": "Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU all versions"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Exposure of Sensitive Information to an Unauthorized Actor"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://jvn.jp/vu/JVNVU98578731/index.html",
                "url": "https://jvn.jp/vu/JVNVU98578731/index.html"
            },
            {
                "refsource": "MISC",
                "name": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-008_en.pdf",
                "url": "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-008_en.pdf"
            },
            {
                "refsource": "MISC",
                "name": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-250-01",
                "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-250-01"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU firmware versions \"26\" and prior and Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU all versions allows a remote unauthenticated attacker to acquire legitimate user names registered in the module via brute-force attack on user names."
            }
        ]
    }
}