{
    "id": "CVE-2019-16239",
    "published": "2019-09-17 12:15:10",
    "last_modified": "2026-06-17 02:21:58",
    "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-120",
    "description": "process_http_response in OpenConnect before 8.05 has a Buffer Overflow when a malicious server uses HTTP chunked encoding with crafted chunk sizes.",
    "epss_score": "0.03445",
    "epss_percentile": "0.88683",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-09 18:17:22",
    "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": "fedoraproject",
            "product": "fedora"
        },
        {
            "vendor": "infradead",
            "product": "openconnect"
        },
        {
            "vendor": "opensuse",
            "product": "leap"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://lists.infradead.org/pipermail/openconnect-devel/2019-September/005412.html",
        "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00060.html",
        "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00061.html",
        "https://lists.debian.org/debian-lts-announce/2019/10/msg00003.html",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FX56KYWC7X4ETV4P6HGJC7GZUEBITBBS/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HDMZGNBLZZKAGBI2PNXYWWKLD2LXKFH6/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WI7ZENFAWCHF2RU4NHPL2CU4WGZ4BNDJ/",
        "https://seclists.org/bugtraq/2020/Jan/31",
        "https://t2.fi/schedule/2019/",
        "https://usn.ubuntu.com/4565-1/",
        "https://www.debian.org/security/2020/dsa-4607",
        "http://lists.infradead.org/pipermail/openconnect-devel/2019-September/005412.html",
        "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00060.html",
        "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00061.html",
        "https://lists.debian.org/debian-lts-announce/2019/10/msg00003.html",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FX56KYWC7X4ETV4P6HGJC7GZUEBITBBS/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HDMZGNBLZZKAGBI2PNXYWWKLD2LXKFH6/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WI7ZENFAWCHF2RU4NHPL2CU4WGZ4BNDJ/",
        "https://seclists.org/bugtraq/2020/Jan/31",
        "https://t2.fi/schedule/2019/",
        "https://usn.ubuntu.com/4565-1/",
        "https://www.debian.org/security/2020/dsa-4607"
    ]
}