{
    "id": "CVE-2019-5596",
    "published": "2019-02-12 05:29:00",
    "last_modified": "2026-06-17 02:37:54",
    "cvss_score": "8.8",
    "cvss_severity": "HIGH",
    "cvss_version": "3.0",
    "cvss_vector": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
    "cwe": null,
    "description": "In FreeBSD 11.2-STABLE after r338618 and before r343786, 12.0-STABLE before r343781, and 12.0-RELEASE before 12.0-RELEASE-p3, a bug in the reference count implementation for UNIX domain sockets can cause a file structure to be incorrectly released potentially allowing a malicious local user to gain root privileges or escape from a jail.",
    "epss_score": "0.01229",
    "epss_percentile": "0.68088",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-11 18:17:21",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "freebsd",
            "product": "freebsd"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "47829",
            "title": "FreeBSD-SA-19:02.fd - Privilege Escalation",
            "date": "2019-12-30",
            "url": "https://www.exploit-db.com/exploits/47829"
        },
        {
            "source": "exploit-db",
            "ref_id": "47081",
            "title": "FreeBSD 12.0 - 'fd' Local Privilege Escalation",
            "date": "2019-07-10",
            "url": "https://www.exploit-db.com/exploits/47081"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/155790/FreeBSD-fd-Privilege-Escalation.html",
        "https://security.FreeBSD.org/advisories/FreeBSD-SA-19:02.fd.asc",
        "http://packetstormsecurity.com/files/155790/FreeBSD-fd-Privilege-Escalation.html",
        "https://security.FreeBSD.org/advisories/FreeBSD-SA-19:02.fd.asc"
    ]
}