{
    "id": "CVE-2009-0641",
    "published": "2009-02-20 06:47:48",
    "last_modified": "2026-06-16 23:05:28",
    "cvss_score": "9.3",
    "cvss_severity": "HIGH",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
    "cwe": "CWE-16",
    "description": "sys_term.c in telnetd in FreeBSD 7.0-RELEASE and other 7.x versions deletes dangerous environment variables with a method that was valid only in older FreeBSD distributions, which might allow remote attackers to execute arbitrary code by passing a crafted environment variable from a telnet client, as demonstrated by an LD_PRELOAD value that references a malicious library.",
    "epss_score": "0.09321",
    "epss_percentile": "0.95242",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-04 18:17:07",
    "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": "8055",
            "title": "FreeBSD 7.0-RELEASE - Telnet Daemon Privilege Escalation",
            "date": "2009-02-16",
            "url": "https://www.exploit-db.com/exploits/8055"
        }
    ],
    "refs_list": [
        "http://lists.grok.org.uk/pipermail/full-disclosure/2009-February/067954.html",
        "http://security.freebsd.org/advisories/FreeBSD-SA-09:05.telnetd.asc",
        "http://www.securityfocus.com/bid/33777",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/48780",
        "https://www.exploit-db.com/exploits/8055",
        "http://lists.grok.org.uk/pipermail/full-disclosure/2009-February/067954.html",
        "http://security.freebsd.org/advisories/FreeBSD-SA-09:05.telnetd.asc",
        "http://www.securityfocus.com/bid/33777",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/48780",
        "https://www.exploit-db.com/exploits/8055"
    ]
}