{
    "id": "CVE-2019-8375",
    "published": "2019-02-24 13:29:00",
    "last_modified": "2026-06-17 02:41:54",
    "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-119",
    "description": "The UIProcess subsystem in WebKit, as used in WebKitGTK through 2.23.90 and WebKitGTK+ through 2.22.6 and other products, does not prevent the script dialog size from exceeding the web view size, which allows remote attackers to cause a denial of service (Buffer Overflow) or possibly have unspecified other impact, related to UIProcess/API/gtk/WebKitScriptDialogGtk.cpp, UIProcess/API/gtk/WebKitScriptDialogImpl.cpp, and UIProcess/API/gtk/WebKitWebViewGtk.cpp, as demonstrated by GNOME Web (aka Epiphany).",
    "epss_score": "0.16113",
    "epss_percentile": "0.96817",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:24",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "canonical",
            "product": "ubuntu_linux"
        },
        {
            "vendor": "opensuse",
            "product": "leap"
        },
        {
            "vendor": "webkitgtk",
            "product": "webkitgtk"
        },
        {
            "vendor": "webkitgtk",
            "product": "webkitgtk\\+"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "46465",
            "title": "WebKitGTK 2.23.90 / WebKitGTK+ 2.22.6 - Denial of Service",
            "date": "2019-02-28",
            "url": "https://www.exploit-db.com/exploits/46465"
        }
    ],
    "refs_list": [
        "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00058.html",
        "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00005.html",
        "https://bugs.webkit.org/show_bug.cgi?id=184875",
        "https://github.com/WebKit/webkit/commit/6f9b511a115311b13c06eb58038ddc2c78da5531",
        "https://trac.webkit.org/changeset/241515/webkit",
        "https://usn.ubuntu.com/3948-1/",
        "https://www.exploit-db.com/exploits/46465/",
        "https://www.inputzero.io/2019/02/fuzzing-webkit.html",
        "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00058.html",
        "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00005.html",
        "https://bugs.webkit.org/show_bug.cgi?id=184875",
        "https://github.com/WebKit/webkit/commit/6f9b511a115311b13c06eb58038ddc2c78da5531",
        "https://trac.webkit.org/changeset/241515/webkit",
        "https://usn.ubuntu.com/3948-1/",
        "https://www.exploit-db.com/exploits/46465/",
        "https://www.inputzero.io/2019/02/fuzzing-webkit.html"
    ]
}