{
    "id": "CVE-2019-19726",
    "published": "2019-12-12 01:15:10",
    "last_modified": "2026-06-17 02:27:08",
    "cvss_score": "7.8",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-269",
    "description": "OpenBSD through 6.6 allows local users to escalate to root because a check for LD_LIBRARY_PATH in setuid programs can be defeated by setting a very small RLIMIT_DATA resource limit. When executing chpass or passwd (which are setuid root), _dl_setup_env in ld.so tries to strip LD_LIBRARY_PATH from the environment, but fails when it cannot allocate memory. Thus, the attacker is able to execute their own library code as root.",
    "epss_score": "0.03522",
    "epss_percentile": "0.88900",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-07 18:17:20",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "openbsd",
            "product": "openbsd"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "47803",
            "title": "OpenBSD - Dynamic Loader chpass Privilege Escalation (Metasploit)",
            "date": "2019-12-30",
            "url": "https://www.exploit-db.com/exploits/47803"
        },
        {
            "source": "exploit-db",
            "ref_id": "47780",
            "title": "OpenBSD 6.x - Dynamic Loader Privilege Escalation",
            "date": "2019-12-16",
            "url": "https://www.exploit-db.com/exploits/47780"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/155658/Qualys-Security-Advisory-OpenBSD-Dynamic-Loader-Privilege-Escalation.html",
        "http://packetstormsecurity.com/files/155764/OpenBSD-Dynamic-Loader-chpass-Privilege-Escalation.html",
        "http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html",
        "http://seclists.org/fulldisclosure/2019/Dec/31",
        "http://seclists.org/fulldisclosure/2023/Oct/11",
        "http://www.openwall.com/lists/oss-security/2023/10/03/2",
        "https://seclists.org/bugtraq/2019/Dec/25",
        "https://www.openbsd.org/errata66.html",
        "https://www.openwall.com/lists/oss-security/2019/12/11/9",
        "http://packetstormsecurity.com/files/155658/Qualys-Security-Advisory-OpenBSD-Dynamic-Loader-Privilege-Escalation.html",
        "http://packetstormsecurity.com/files/155764/OpenBSD-Dynamic-Loader-chpass-Privilege-Escalation.html",
        "http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html",
        "http://seclists.org/fulldisclosure/2019/Dec/31",
        "http://seclists.org/fulldisclosure/2023/Oct/11",
        "http://www.openwall.com/lists/oss-security/2023/10/03/2",
        "https://seclists.org/bugtraq/2019/Dec/25",
        "https://www.openbsd.org/errata66.html",
        "https://www.openwall.com/lists/oss-security/2019/12/11/9"
    ]
}