{
    "id": "CVE-2016-2056",
    "published": "2016-04-13 16:59:06",
    "last_modified": "2026-06-17 00:43:20",
    "cvss_score": "8.8",
    "cvss_severity": "HIGH",
    "cvss_version": "3.0",
    "cvss_vector": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-77",
    "description": "xymond in Xymon 4.1.x, 4.2.x, and 4.3.x before 4.3.25 allow remote authenticated users to execute arbitrary commands via shell metacharacters in the adduser_name argument in (1) web/useradm.c or (2) web/chpasswd.c.",
    "epss_score": "0.54507",
    "epss_percentile": "0.98984",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:16",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "xymon",
            "product": "xymon"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "47114",
            "title": "Xymon 4.3.25 - useradm Command Execution (Metasploit)",
            "date": "2019-07-12",
            "url": "https://www.exploit-db.com/exploits/47114"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/135758/Xymon-4.3.x-Buffer-Overflow-Code-Execution-Information-Disclosure.html",
        "http://packetstormsecurity.com/files/153620/Xymon-useradm-Command-Execution.html",
        "http://www.debian.org/security/2016/dsa-3495",
        "http://www.securityfocus.com/archive/1/537522/100/0/threaded",
        "https://sourceforge.net/p/xymon/code/7892/",
        "http://packetstormsecurity.com/files/135758/Xymon-4.3.x-Buffer-Overflow-Code-Execution-Information-Disclosure.html",
        "http://packetstormsecurity.com/files/153620/Xymon-useradm-Command-Execution.html",
        "http://www.debian.org/security/2016/dsa-3495",
        "http://www.securityfocus.com/archive/1/537522/100/0/threaded",
        "https://sourceforge.net/p/xymon/code/7892/"
    ]
}