{
    "id": "CVE-2019-17571",
    "published": "2019-12-20 17:15:11",
    "last_modified": "2026-06-17 02:24:11",
    "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": "Included in Log4j 1.2 is a SocketServer class that is vulnerable to deserialization of untrusted data which can be exploited to remotely execute arbitrary code when combined with a deserialization gadget when listening to untrusted network traffic for log data. This affects Log4j versions up to 1.2 up to 1.2.17.",
    "epss_score": "0.69060",
    "epss_percentile": "0.99335",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-09-30 18:17:22",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 69.1% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "apache",
            "product": "bookkeeper"
        },
        {
            "vendor": "apache",
            "product": "log4j"
        },
        {
            "vendor": "canonical",
            "product": "ubuntu_linux"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "netapp",
            "product": "oncommand_system_manager"
        },
        {
            "vendor": "netapp",
            "product": "oncommand_workflow_automation"
        },
        {
            "vendor": "opensuse",
            "product": "leap"
        },
        {
            "vendor": "oracle",
            "product": "application_testing_suite"
        },
        {
            "vendor": "oracle",
            "product": "communications_network_integrity"
        },
        {
            "vendor": "oracle",
            "product": "endeca_information_discovery_studio"
        },
        {
            "vendor": "oracle",
            "product": "financial_services_lending_and_leasing"
        },
        {
            "vendor": "oracle",
            "product": "mysql_enterprise_monitor"
        },
        {
            "vendor": "oracle",
            "product": "primavera_gateway"
        },
        {
            "vendor": "oracle",
            "product": "rapid_planning"
        },
        {
            "vendor": "oracle",
            "product": "retail_extract_transform_and_load"
        },
        {
            "vendor": "oracle",
            "product": "retail_service_backbone"
        },
        {
            "vendor": "oracle",
            "product": "weblogic_server"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00022.html",
        "https://lists.apache.org/thread.html/277b4b5c2b0e06a825ccec565fa65bd671f35a4d58e3e2ec5d0618e1%40%3Cdev.tika.apache.org%3E",
        "https://lists.apache.org/thread.html/44491fb9cc19acc901f7cff34acb7376619f15638439416e3e14761c%40%3Cdev.tika.apache.org%3E",
        "https://lists.apache.org/thread.html/479471e6debd608c837b9815b76eab24676657d4444fcfd5ef96d6e6%40%3Cdev.tika.apache.org%3E",
        "https://lists.apache.org/thread.html/564f03b4e9511fcba29c68fc0299372dadbdb002718fa8edcc4325e4%40%3Cjira.kafka.apache.org%3E",
        "https://lists.apache.org/thread.html/6114ce566200d76e3cc45c521a62c2c5a4eac15738248f58a99f622c%40%3Cissues.activemq.apache.org%3E",
        "https://lists.apache.org/thread.html/752ec92cd1e334a639e79bfbd689a4ec2c6579ec5bb41b53ffdf358d%40%3Cdev.kafka.apache.org%3E",
        "https://lists.apache.org/thread.html/8ab32b4c9f1826f20add7c40be08909de9f58a89dc1de9c09953f5ac%40%3Cissues.activemq.apache.org%3E",
        "https://lists.apache.org/thread.html/eea03d504b36e8f870e8321d908e1def1addda16adda04327fe7c125%40%3Cdev.logging.apache.org%3E",
        "https://lists.apache.org/thread.html/r05755112a8c164abc1004bb44f198b1e3d8ca3d546a8f13ebd3aa05f%40%3Cissues.zookeeper.apache.org%3E",
        "https://lists.apache.org/thread.html/r107c8737db39ec9ec4f4e7147b249e29be79170b9ef4b80528105a2d%40%3Cdev.zookeeper.apache.org%3E",
        "https://lists.apache.org/thread.html/r13d4b5c60ff63f3c4fab51d6ff266655be503b8a1884e2f2fab67c3a%40%3Ccommon-issues.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/r189aaeaad897f7d6b96f7c43a8ef2dfb9f6e9f8c1cc9ad182ce9b9ae%40%3Cjira.kafka.apache.org%3E",
        "https://lists.apache.org/thread.html/r18f1c010b554a3a2d761e8ffffd8674fd4747bcbcf16c643d708318c%40%3Cissues.activemq.apache.org%3E",
        "https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E",
        "https://lists.apache.org/thread.html/r1b7734dfdfd938640f2f5fb6f4231a267145c71ed60cc7faa1cbac07%40%3Ccommon-issues.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/r26244f9f7d9a8a27a092eb0b2a0ca9395e88fcde8b5edaeca7ce569c%40%3Ccommon-issues.hadoop.apache.org%3E",
        "https://lists.apache.org/thread.html/r2721aba31a8562639c4b937150897e24f78f747cdbda8641c0f659fe%40%3Cusers.kafka.apache.org%3E",
        "https://lists.apache.org/thread.html/r2756fd570b6709d55a61831ca028405bcb3e312175a60bc5d911c81f%40%3Cjira.kafka.apache.org%3E",
        "https://lists.apache.org/thread.html/r2ce8d26154bea939536e6cf27ed02d3192bf5c5d04df885a80fe89b3%40%3Cissues.activemq.apache.org%3E",
        "https://lists.apache.org/thread.html/r2ff63f210842a3c5e42f03a35d8f3a345134d073c80a04077341c211%40%3Cissues.activemq.apache.org%3E",
        "https://lists.apache.org/thread.html/r3543ead2317dcd3306f69ee37b07dd383dbba6e2f47ff11eb55879ad%40%3Cusers.activemq.apache.org%3E",
        "https://lists.apache.org/thread.html/r356d57d6225f91fdc30f8b0a2bed229d1ece55e16e552878c5fa809a%40%3Cissues.zookeeper.apache.org%3E",
        "https://lists.apache.org/thread.html/r3784834e80df2f284577a5596340fb84346c91a2dea6a073e65e3397%40%3Cissues.activemq.apache.org%3E",
        "https://lists.apache.org/thread.html/r3a85514a518f3080ab1fc2652cfe122c2ccf67cfb32356acb1b08fe8%40%3Cdev.tika.apache.org%3E"
    ]
}