{
    "id": "CVE-2020-4450",
    "published": "2020-06-05 17:15:11",
    "last_modified": "2026-06-17 03:20:00",
    "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": "IBM WebSphere Application Server 8.5 and 9.0 traditional could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects. IBM X-Force ID: 181231.",
    "epss_score": "0.34176",
    "epss_percentile": "0.98362",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-02 18:17:28",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 34.2% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "ibm",
            "product": "websphere_application_server"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/181231",
        "https://www.ibm.com/support/pages/node/6220294",
        "https://www.zerodayinitiative.com/advisories/ZDI-20-689/",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/181231",
        "https://www.ibm.com/support/pages/node/6220294",
        "https://www.zerodayinitiative.com/advisories/ZDI-20-689/"
    ]
}