{
    "id": "CVE-2016-4303",
    "published": "2016-09-26 14:59:01",
    "last_modified": "2026-06-17 00:47:19",
    "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": "The parse_string function in cjson.c in the cJSON library mishandles UTF8/16 strings, which allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a non-hex character in a JSON string, which triggers a heap-based buffer overflow.",
    "epss_score": "0.06963",
    "epss_percentile": "0.93941",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-05 18:17:14",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "es",
            "product": "iperf3"
        },
        {
            "vendor": "novell",
            "product": "suse_package_hub_for_suse_linux_enterprise"
        },
        {
            "vendor": "opensuse",
            "product": "leap"
        },
        {
            "vendor": "opensuse",
            "product": "opensuse"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://blog.talosintel.com/2016/06/esnet-vulnerability.html",
        "http://lists.opensuse.org/opensuse-updates/2016-08/msg00082.html",
        "http://lists.opensuse.org/opensuse-updates/2016-08/msg00090.html",
        "http://software.es.net/iperf/news.html#security-issue-iperf-3-1-3-iperf-3-0-12-released",
        "http://www.talosintelligence.com/reports/TALOS-2016-0164/",
        "https://github.com/esnet/iperf/commit/91f2fa59e8ed80dfbf400add0164ee0e508e412a",
        "https://lists.debian.org/debian-lts-announce/2020/01/msg00023.html",
        "https://raw.githubusercontent.com/esnet/security/master/cve-2016-4303/esnet-secadv-2016-0001.txt.asc",
        "http://blog.talosintel.com/2016/06/esnet-vulnerability.html",
        "http://lists.opensuse.org/opensuse-updates/2016-08/msg00082.html",
        "http://lists.opensuse.org/opensuse-updates/2016-08/msg00090.html",
        "http://software.es.net/iperf/news.html#security-issue-iperf-3-1-3-iperf-3-0-12-released",
        "http://www.talosintelligence.com/reports/TALOS-2016-0164/",
        "https://github.com/esnet/iperf/commit/91f2fa59e8ed80dfbf400add0164ee0e508e412a",
        "https://lists.debian.org/debian-lts-announce/2020/01/msg00023.html",
        "https://raw.githubusercontent.com/esnet/security/master/cve-2016-4303/esnet-secadv-2016-0001.txt.asc"
    ]
}