{
    "id": "CVE-2021-27114",
    "published": "2021-04-14 14:15:13",
    "last_modified": "2026-06-17 03:44:18",
    "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 in D-Link DIR-816 A2 1.10 B05 devices. Within the handler function of the /goform/addassignment route, a very long text entry for the\"'s_ip\" and \"s_mac\" fields could lead to a Stack-Based Buffer Overflow and overwrite the return address.",
    "epss_score": "0.24552",
    "epss_percentile": "0.97821",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-03 18:17:29",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 24.6% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "dlink",
            "product": "dir-816"
        },
        {
            "vendor": "dlink",
            "product": "dir-816_firmware"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://github.com/GD008/vuln/blob/main/DIR-816_stackoverflow.md",
        "https://www.dlink.com/en/security-bulletin/",
        "https://github.com/GD008/vuln/blob/main/DIR-816_stackoverflow.md",
        "https://www.dlink.com/en/security-bulletin/"
    ]
}