{
    "id": "CVE-2017-17484",
    "published": "2017-12-10 20:29:00",
    "last_modified": "2026-06-17 01:10:51",
    "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-119",
    "description": "The ucnv_UTF8FromUTF8 function in ucnv_u8.cpp in International Components for Unicode (ICU) for C/C++ through 60.1 mishandles ucnv_convertEx calls for UTF-8 to UTF-8 conversion, which allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted string, as demonstrated by ZNC.",
    "epss_score": "0.04481",
    "epss_percentile": "0.91204",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-07 18:17:15",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "icu-project",
            "product": "international_components_for_unicode"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://github.com/znc/znc/issues/1459",
        "https://ssl.icu-project.org/trac/attachment/ticket/13490/poc.cpp",
        "https://ssl.icu-project.org/trac/changeset/40714",
        "https://ssl.icu-project.org/trac/changeset/40715",
        "https://ssl.icu-project.org/trac/ticket/13490",
        "https://ssl.icu-project.org/trac/ticket/13510",
        "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html",
        "https://github.com/znc/znc/issues/1459",
        "https://ssl.icu-project.org/trac/attachment/ticket/13490/poc.cpp",
        "https://ssl.icu-project.org/trac/changeset/40714",
        "https://ssl.icu-project.org/trac/changeset/40715",
        "https://ssl.icu-project.org/trac/ticket/13490",
        "https://ssl.icu-project.org/trac/ticket/13510",
        "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
    ]
}