{
    "id": "CVE-2021-21960",
    "published": "2022-02-04 23:15:10",
    "last_modified": "2026-06-17 03:36:26",
    "cvss_score": "10.0",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
    "cwe": "CWE-121",
    "description": "A stack-based buffer overflow vulnerability exists in both the LLMNR functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted network packet can lead to remote code execution. An attacker can send a malicious packet to trigger this vulnerability.",
    "epss_score": "0.02639",
    "epss_percentile": "0.85191",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-13 18:17:27",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (10), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "sealevel",
            "product": "seaconnect_370w"
        },
        {
            "vendor": "sealevel",
            "product": "seaconnect_370w_firmware"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1389",
        "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1389"
    ]
}