{
    "id": "CVE-2018-12392",
    "published": "2019-02-28 18:29:00",
    "last_modified": "2026-06-17 01:37:41",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.0",
    "cvss_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": null,
    "description": "When manipulating user events in nested loops while opening a document through script, it is possible to trigger a potentially exploitable crash due to poor event handling. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.",
    "epss_score": "0.03425",
    "epss_percentile": "0.88601",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-09 18:17:19",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "canonical",
            "product": "ubuntu_linux"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "mozilla",
            "product": "firefox"
        },
        {
            "vendor": "mozilla",
            "product": "thunderbird"
        },
        {
            "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"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://www.securityfocus.com/bid/105718",
        "http://www.securityfocus.com/bid/105769",
        "http://www.securitytracker.com/id/1041944",
        "https://access.redhat.com/errata/RHSA-2018:3005",
        "https://access.redhat.com/errata/RHSA-2018:3006",
        "https://access.redhat.com/errata/RHSA-2018:3531",
        "https://access.redhat.com/errata/RHSA-2018:3532",
        "https://bugzilla.mozilla.org/show_bug.cgi?id=1492823",
        "https://lists.debian.org/debian-lts-announce/2018/11/msg00008.html",
        "https://lists.debian.org/debian-lts-announce/2018/11/msg00011.html",
        "https://security.gentoo.org/glsa/201811-04",
        "https://security.gentoo.org/glsa/201811-13",
        "https://usn.ubuntu.com/3801-1/",
        "https://usn.ubuntu.com/3868-1/",
        "https://www.debian.org/security/2018/dsa-4324",
        "https://www.debian.org/security/2018/dsa-4337",
        "https://www.mozilla.org/security/advisories/mfsa2018-26/",
        "https://www.mozilla.org/security/advisories/mfsa2018-27/",
        "https://www.mozilla.org/security/advisories/mfsa2018-28/",
        "http://www.securityfocus.com/bid/105718",
        "http://www.securityfocus.com/bid/105769",
        "http://www.securitytracker.com/id/1041944",
        "https://access.redhat.com/errata/RHSA-2018:3005",
        "https://access.redhat.com/errata/RHSA-2018:3006",
        "https://access.redhat.com/errata/RHSA-2018:3531"
    ]
}