{
    "id": "CVE-2020-27158",
    "published": "2020-10-27 20:15:22",
    "last_modified": "2026-06-17 03:08:53",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-78",
    "description": "Addressed remote code execution vulnerability in cgi_api.php that allowed escalation of privileges in Western Digital My Cloud NAS devices prior to 5.04.114.",
    "epss_score": "0.07498",
    "epss_percentile": "0.94312",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-05 18:17:23",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "westerndigital",
            "product": "my_cloud_ex4100"
        },
        {
            "vendor": "westerndigital",
            "product": "my_cloud_expert_series_ex2"
        },
        {
            "vendor": "westerndigital",
            "product": "my_cloud_firmware"
        },
        {
            "vendor": "westerndigital",
            "product": "my_cloud_mirror_-_gen_2"
        },
        {
            "vendor": "westerndigital",
            "product": "my_cloud_pr2100"
        },
        {
            "vendor": "westerndigital",
            "product": "my_cloud_pr4100"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://www.comparitech.com/blog/information-security/security-vulnerabilities-80000-devices-update-now/",
        "https://www.westerndigital.com/support/productsecurity",
        "https://www.westerndigital.com/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114",
        "https://www.comparitech.com/blog/information-security/security-vulnerabilities-80000-devices-update-now/",
        "https://www.westerndigital.com/support/productsecurity",
        "https://www.westerndigital.com/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114"
    ]
}