{
    "id": "CVE-2018-5407",
    "published": "2018-11-15 21:29:00",
    "last_modified": "2026-06-17 02:00:16",
    "cvss_score": "4.7",
    "cvss_severity": "MEDIUM",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
    "cwe": "CWE-200",
    "description": "Simultaneous Multi-threading (SMT) in processors can enable local users to exploit software vulnerable to timing attacks via a side-channel timing attack on 'port contention'.",
    "epss_score": "0.03418",
    "epss_percentile": "0.88519",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-03 18:17:21",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "canonical",
            "product": "ubuntu_linux"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "nodejs",
            "product": "node.js"
        },
        {
            "vendor": "openssl",
            "product": "openssl"
        },
        {
            "vendor": "oracle",
            "product": "api_gateway"
        },
        {
            "vendor": "oracle",
            "product": "application_server"
        },
        {
            "vendor": "oracle",
            "product": "enterprise_manager_base_platform"
        },
        {
            "vendor": "oracle",
            "product": "enterprise_manager_ops_center"
        },
        {
            "vendor": "oracle",
            "product": "mysql_enterprise_backup"
        },
        {
            "vendor": "oracle",
            "product": "peoplesoft_enterprise_peopletools"
        },
        {
            "vendor": "oracle",
            "product": "primavera_p6_enterprise_project_portfolio_management"
        },
        {
            "vendor": "oracle",
            "product": "tuxedo"
        },
        {
            "vendor": "oracle",
            "product": "vm_virtualbox"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_desktop"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_aus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_eus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_tus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_workstation"
        },
        {
            "vendor": "tenable",
            "product": "nessus"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "45785",
            "title": "Intel (Skylake / Kaby Lake) - 'PortSmash' CPU SMT Side-Channel",
            "date": "2018-11-02",
            "url": "https://www.exploit-db.com/exploits/45785"
        }
    ],
    "refs_list": [
        "http://www.securityfocus.com/bid/105897",
        "https://access.redhat.com/errata/RHSA-2019:0483",
        "https://access.redhat.com/errata/RHSA-2019:0651",
        "https://access.redhat.com/errata/RHSA-2019:0652",
        "https://access.redhat.com/errata/RHSA-2019:2125",
        "https://access.redhat.com/errata/RHSA-2019:3929",
        "https://access.redhat.com/errata/RHSA-2019:3931",
        "https://access.redhat.com/errata/RHSA-2019:3932",
        "https://access.redhat.com/errata/RHSA-2019:3933",
        "https://access.redhat.com/errata/RHSA-2019:3935",
        "https://eprint.iacr.org/2018/1060.pdf",
        "https://github.com/bbbrumley/portsmash",
        "https://lists.debian.org/debian-lts-announce/2018/11/msg00024.html",
        "https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/",
        "https://security.gentoo.org/glsa/201903-10",
        "https://security.netapp.com/advisory/ntap-20181126-0001/",
        "https://support.f5.com/csp/article/K49711130?utm_source=f5support&amp%3Butm_medium=RSS",
        "https://usn.ubuntu.com/3840-1/",
        "https://www.debian.org/security/2018/dsa-4348",
        "https://www.debian.org/security/2018/dsa-4355",
        "https://www.exploit-db.com/exploits/45785/",
        "https://www.oracle.com/security-alerts/cpuapr2020.html",
        "https://www.oracle.com/security-alerts/cpujan2020.html",
        "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html",
        "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
    ]
}