{
    "id": "CVE-2021-20045",
    "published": "2021-12-08 10:15:08",
    "last_modified": "2026-06-17 03:33:12",
    "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-120",
    "description": "A buffer overflow vulnerability in SMA100 sonicfiles RAC_COPY_TO (RacNumber 36) method allows a remote unauthenticated attacker to potentially execute code as the 'nobody' user in the appliance. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.",
    "epss_score": "0.25208",
    "epss_percentile": "0.97881",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-03 18:17:28",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 25.2% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "sonicwall",
            "product": "sma_200"
        },
        {
            "vendor": "sonicwall",
            "product": "sma_200_firmware"
        },
        {
            "vendor": "sonicwall",
            "product": "sma_210"
        },
        {
            "vendor": "sonicwall",
            "product": "sma_210_firmware"
        },
        {
            "vendor": "sonicwall",
            "product": "sma_400"
        },
        {
            "vendor": "sonicwall",
            "product": "sma_400_firmware"
        },
        {
            "vendor": "sonicwall",
            "product": "sma_410"
        },
        {
            "vendor": "sonicwall",
            "product": "sma_410_firmware"
        },
        {
            "vendor": "sonicwall",
            "product": "sma_500v"
        },
        {
            "vendor": "sonicwall",
            "product": "sma_500v_firmware"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026",
        "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026"
    ]
}