{
    "id": "CVE-2021-43722",
    "published": "2022-03-31 21:15:07",
    "last_modified": "2026-06-17 04:11:18",
    "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": "D-Link DIR-645 1.03 A1 is vulnerable to Buffer Overflow. The hnap_main function in the cgibin handler uses sprintf to format the soapaction header onto the stack and has no limit on the size.",
    "epss_score": "0.03162",
    "epss_percentile": "0.87634",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-10 18:17:27",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "dlink",
            "product": "dir-645"
        },
        {
            "vendor": "dlink",
            "product": "dir-645_firmware"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://github.com/luqiut/iot/blob/main/DIR-645%20Stack%20overflow.md",
        "https://www.dlink.com/en/security-bulletin/",
        "https://github.com/luqiut/iot/blob/main/DIR-645%20Stack%20overflow.md",
        "https://www.dlink.com/en/security-bulletin/"
    ]
}