{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ASSIGNER": "secure@microsoft.com",
        "ID": "CVE-2021-26857",
        "STATE": "PUBLIC"
    },
    "affects": {
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                {
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                            {
                                "product_name": "Microsoft Exchange Server 2019 Cumulative Update 4",
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                            {
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                            {
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                            },
                            {
                                "product_name": "Microsoft Exchange Server 2016 Cumulative Update 16",
                                "version": {
                                    "version_data": [
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                                            "version_value": ""
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                                }
                            },
                            {
                                "product_name": "Microsoft Exchange Server 2019 Cumulative Update 7",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": ""
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                            },
                            {
                                "product_name": "Microsoft Exchange Server 2016 Cumulative Update 18",
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                                    "version_data": [
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                            {
                                "product_name": "Microsoft Exchange Server",
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                                        {
                                            "version_value": "2010 Service Pack 3"
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                }
            ]
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    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-26412, CVE-2021-26854, CVE-2021-26855, CVE-2021-26858, CVE-2021-27065, CVE-2021-27078."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Remote Code Execution"
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                ]
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        ]
    },
    "references": {
        "reference_data": [
            {
                "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26857",
                "refsource": "MISC",
                "name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26857"
            }
        ]
    }
}