{
    "id": "CVE-2025-66398",
    "published": "2026-01-01 18:15:40",
    "last_modified": "2026-10-01 08:10:00",
    "cvss_score": "9.6",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
    "cwe": "CWE-78",
    "description": "Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.19.0, an unauthenticated attacker can pollute the internal state (`restoreFilePath`) of the server via the `/skServer/validateBackup` endpoint. This allows the attacker to hijack the administrator's \"Restore\" functionality to overwrite critical server configuration files (e.g., `security.json`, `package.json`), leading to account takeover and Remote Code Execution (RCE). Version 2.19.0 patches this vulnerability.",
    "epss_score": "0.19850",
    "epss_percentile": "0.97349",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-03 18:17:54",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 19.9% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "signalk",
            "product": "signal_k_server"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://github.com/SignalK/signalk-server/releases/tag/v2.19.0",
        "https://github.com/SignalK/signalk-server/security/advisories/GHSA-w3x5-7c4c-66p9"
    ]
}