{
    "id": "CVE-2022-27255",
    "published": "2022-08-01 12:15:08",
    "last_modified": "2026-06-17 04:36:35",
    "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-20",
    "description": "In Realtek eCos RSDK 1.5.7p1 and MSDK 4.9.4p1, the SIP ALG function that rewrites SDP data has a stack-based buffer overflow. This allows an attacker to remotely execute code without authentication via a crafted SIP packet that contains malicious SDP data.",
    "epss_score": "0.37080",
    "epss_percentile": "0.98476",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-02 18:17:33",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 37.1% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "realtek",
            "product": "ecos_msdk"
        },
        {
            "vendor": "realtek",
            "product": "ecos_msdk_firmware"
        },
        {
            "vendor": "realtek",
            "product": "ecos_rsdk"
        },
        {
            "vendor": "realtek",
            "product": "ecos_rsdk_firmware"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://forum.defcon.org/node/241835",
        "https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2022-27255.pdf",
        "https://forum.defcon.org/node/241835",
        "https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2022-27255.pdf"
    ]
}