{
    "id": "CVE-2021-31758",
    "published": "2021-05-07 23:15:07",
    "last_modified": "2026-06-17 03:52:12",
    "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": "An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /goform/setportList allows attackers to execute arbitrary code on the system via a crafted post request.",
    "epss_score": "0.06619",
    "epss_percentile": "0.93677",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-06 18:17:26",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "tenda",
            "product": "ac11"
        },
        {
            "vendor": "tenda",
            "product": "ac11_firmware"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_2",
        "https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_2"
    ]
}