{
    "id": "CVE-2018-8828",
    "published": "2018-03-20 20:29:00",
    "last_modified": "2026-06-17 02:05:28",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.0",
    "cvss_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-193",
    "description": "A Buffer Overflow issue was discovered in Kamailio before 4.4.7, 5.0.x before 5.0.6, and 5.1.x before 5.1.2. A specially crafted REGISTER message with a malformed branch or From tag triggers an off-by-one heap-based buffer overflow in the tmx_check_pretran function in modules/tmx/tmx_pretran.c.",
    "epss_score": "0.30411",
    "epss_percentile": "0.98188",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-03 18:17:22",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 30.4% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "kamailio",
            "product": "kamailio"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://github.com/EnableSecurity/advisories/tree/master/ES2018-05-kamailio-heap-overflow",
        "https://github.com/kamailio/kamailio/commit/e1d8008a09d9390ebaf698abe8909e10dfec4097",
        "https://usn.ubuntu.com/4240-1/",
        "https://www.debian.org/security/2018/dsa-4148",
        "https://github.com/EnableSecurity/advisories/tree/master/ES2018-05-kamailio-heap-overflow",
        "https://github.com/kamailio/kamailio/commit/e1d8008a09d9390ebaf698abe8909e10dfec4097",
        "https://usn.ubuntu.com/4240-1/",
        "https://www.debian.org/security/2018/dsa-4148"
    ]
}