{
    "id": "CVE-2021-3287",
    "published": "2021-04-22 13:15:07",
    "last_modified": "2026-06-17 04:04:53",
    "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-502",
    "description": "Zoho ManageEngine OpManager before 12.5.329 allows unauthenticated Remote Code Execution due to a general bypass in the deserialization class.",
    "epss_score": "0.51332",
    "epss_percentile": "0.98909",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-02 18:17:31",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 51.3% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "zohocorp",
            "product": "manageengine_opmanager"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://packetstormsecurity.com/files/164231/ManageEngine-OpManager-SumPDU-Java-Deserialization.html",
        "https://www.manageengine.com/network-monitoring/help/read-me-complete.html#125329",
        "http://packetstormsecurity.com/files/164231/ManageEngine-OpManager-SumPDU-Java-Deserialization.html",
        "https://www.manageengine.com/network-monitoring/help/read-me-complete.html#125329"
    ]
}