{
    "id": "CVE-2022-40855",
    "published": "2022-09-23 15:15:14",
    "last_modified": "2026-06-17 05:02:08",
    "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-787",
    "description": "Tenda W20E router V15.11.0.6 contains a stack overflow in the function formSetPortMapping with post request 'goform/setPortMapping/'. This vulnerability allows attackers to cause a Denial of Service (DoS) or Remote Code Execution (RCE) via the portMappingServer, portMappingProtocol, portMappingWan, porMappingtInternal, and portMappingExternal parameters.",
    "epss_score": "0.13760",
    "epss_percentile": "0.96408",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-04 18:17:29",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 13.8% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "tenda",
            "product": "w20e"
        },
        {
            "vendor": "tenda",
            "product": "w20e_firmware"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://github.com/CPSeek/Router-vuls/blob/main/Tenda/W20E/formSetPortMapping.md",
        "https://github.com/CPSeek/Router-vuls/blob/main/Tenda/W20E/formSetPortMapping.md"
    ]
}