{
    "id": "CVE-2020-11998",
    "published": "2020-09-10 19:15:13",
    "last_modified": "2026-06-17 02:51:13",
    "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": null,
    "description": "A regression has been introduced in the commit preventing JMX re-bind. By passing an empty environment map to RMIConnectorServer, instead of the map that contains the authentication credentials, it leaves ActiveMQ open to the following attack: https://docs.oracle.com/javase/8/docs/technotes/guides/management/agent.html \"A remote client could create a javax.management.loading.MLet MBean and use it to create new MBeans from arbitrary URLs, at least if there is no security manager. In other words, a rogue remote client could make your Java application execute arbitrary code.\" Mitigation: Upgrade to Apache ActiveMQ 5.15.13",
    "epss_score": "0.48885",
    "epss_percentile": "0.98846",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-02 18:17:25",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 48.9% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "apache",
            "product": "activemq"
        },
        {
            "vendor": "oracle",
            "product": "communications_diameter_signaling_router"
        },
        {
            "vendor": "oracle",
            "product": "communications_element_manager"
        },
        {
            "vendor": "oracle",
            "product": "communications_session_report_manager"
        },
        {
            "vendor": "oracle",
            "product": "communications_session_route_manager"
        },
        {
            "vendor": "oracle",
            "product": "enterprise_repository"
        },
        {
            "vendor": "oracle",
            "product": "flexcube_private_banking"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://activemq.apache.org/security-advisories.data/CVE-2020-11998-announcement.txt",
        "https://lists.apache.org/thread.html/r946488fb942fd35c6a6e0359f52504a558ed438574a8f14d36d7dcd7%40%3Ccommits.activemq.apache.org%3E",
        "https://lists.apache.org/thread.html/rb2fd3bf2dce042e0ab3f3c94c4767c96bb2e7e6737624d63162df36d%40%3Ccommits.activemq.apache.org%3E",
        "https://www.oracle.com//security-alerts/cpujul2021.html",
        "https://www.oracle.com/security-alerts/cpuApr2021.html",
        "https://www.oracle.com/security-alerts/cpujan2021.html",
        "https://www.oracle.com/security-alerts/cpuoct2021.html",
        "http://activemq.apache.org/security-advisories.data/CVE-2020-11998-announcement.txt",
        "https://lists.apache.org/thread.html/r946488fb942fd35c6a6e0359f52504a558ed438574a8f14d36d7dcd7%40%3Ccommits.activemq.apache.org%3E",
        "https://lists.apache.org/thread.html/rb2fd3bf2dce042e0ab3f3c94c4767c96bb2e7e6737624d63162df36d%40%3Ccommits.activemq.apache.org%3E",
        "https://www.oracle.com//security-alerts/cpujul2021.html",
        "https://www.oracle.com/security-alerts/cpuApr2021.html",
        "https://www.oracle.com/security-alerts/cpujan2021.html",
        "https://www.oracle.com/security-alerts/cpuoct2021.html"
    ]
}