{
    "id": "CVE-2016-9899",
    "published": "2018-06-11 21:29:02",
    "last_modified": "2026-06-17 00:56:44",
    "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": "CWE-416",
    "description": "Use-after-free while manipulating DOM events and removing audio elements due to errors in the handling of node adoption. This vulnerability affects Firefox < 50.1, Firefox ESR < 45.6, and Thunderbird < 45.6.",
    "epss_score": "0.21147",
    "epss_percentile": "0.97510",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:17",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "mozilla",
            "product": "firefox"
        },
        {
            "vendor": "mozilla",
            "product": "thunderbird"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux"
        },
        {
            "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_workstation"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "41042",
            "title": "Mozilla Firefox < 50.1.0 - Use-After-Free",
            "date": "2017-01-13",
            "url": "https://www.exploit-db.com/exploits/41042"
        }
    ],
    "refs_list": [
        "http://rhn.redhat.com/errata/RHSA-2016-2946.html",
        "http://rhn.redhat.com/errata/RHSA-2016-2973.html",
        "http://www.securityfocus.com/bid/94885",
        "http://www.securitytracker.com/id/1037461",
        "https://bugzilla.mozilla.org/show_bug.cgi?id=1317409",
        "https://security.gentoo.org/glsa/201701-15",
        "https://www.debian.org/security/2017/dsa-3757",
        "https://www.exploit-db.com/exploits/41042/",
        "https://www.mozilla.org/security/advisories/mfsa2016-94/",
        "https://www.mozilla.org/security/advisories/mfsa2016-95/",
        "https://www.mozilla.org/security/advisories/mfsa2016-96/",
        "http://rhn.redhat.com/errata/RHSA-2016-2946.html",
        "http://rhn.redhat.com/errata/RHSA-2016-2973.html",
        "http://www.securityfocus.com/bid/94885",
        "http://www.securitytracker.com/id/1037461",
        "https://bugzilla.mozilla.org/show_bug.cgi?id=1317409",
        "https://security.gentoo.org/glsa/201701-15",
        "https://www.debian.org/security/2017/dsa-3757",
        "https://www.exploit-db.com/exploits/41042/",
        "https://www.mozilla.org/security/advisories/mfsa2016-94/",
        "https://www.mozilla.org/security/advisories/mfsa2016-95/",
        "https://www.mozilla.org/security/advisories/mfsa2016-96/"
    ]
}