{
    "id": "CVE-2021-41653",
    "published": "2021-11-13 15:15:08",
    "last_modified": "2026-07-09 01:17:03",
    "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-94",
    "description": "The PING function on the TP-Link TL-WR840N EU v5 router with firmware through TL-WR840N(EU)_V5_171211 is vulnerable to remote code execution via a crafted payload in an IP address input field.",
    "epss_score": "0.76045",
    "epss_percentile": "0.99517",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-09-30 18:17:29",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 76% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "tp-link",
            "product": "tl-wr840n"
        },
        {
            "vendor": "tp-link",
            "product": "tl-wr840n_firmware"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://k4m1ll0.com/cve-2021-41653.html",
        "https://www.tp-link.com/us/press/security-advisory/",
        "https://k4m1ll0.com/cve-2021-41653.html",
        "https://www.tp-link.com/us/press/security-advisory/"
    ]
}