{
    "id": "CVE-2016-9558",
    "published": "2017-02-28 18:59:00",
    "last_modified": "2026-06-17 00:56:14",
    "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-190",
    "description": "(1) libdwarf/dwarf_leb.c and (2) dwarfdump/print_frames.c in libdwarf before 20161124 allow remote attackers to have unspecified impact via a crafted bit pattern in a signed leb number, aka a \"negation overflow.\"",
    "epss_score": "0.04974",
    "epss_percentile": "0.91975",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-07 18:17:14",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "libdwarf_project",
            "product": "libdwarf"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://www.openwall.com/lists/oss-security/2016/11/19/6",
        "http://www.openwall.com/lists/oss-security/2016/11/23/3",
        "http://www.securityfocus.com/bid/94491",
        "https://blogs.gentoo.org/ago/2016/11/19/libdwarf-negation-overflow-in-dwarf_leb-c/",
        "https://sourceforge.net/p/libdwarf/code/ci/4f19e1050cd8e9ddf2cb6caa061ff2fec4c9b5f9/#diff-5",
        "https://www.prevanders.net/dwarfbug.html",
        "http://www.openwall.com/lists/oss-security/2016/11/19/6",
        "http://www.openwall.com/lists/oss-security/2016/11/23/3",
        "http://www.securityfocus.com/bid/94491",
        "https://blogs.gentoo.org/ago/2016/11/19/libdwarf-negation-overflow-in-dwarf_leb-c/",
        "https://sourceforge.net/p/libdwarf/code/ci/4f19e1050cd8e9ddf2cb6caa061ff2fec4c9b5f9/#diff-5",
        "https://www.prevanders.net/dwarfbug.html"
    ]
}