{
    "id": "CVE-1999-0661",
    "published": "1999-01-01 05:00:00",
    "last_modified": "2026-06-16 21:48:47",
    "cvss_score": "10.0",
    "cvss_severity": "HIGH",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
    "cwe": null,
    "description": "A system is running a version of software that was replaced with a Trojan Horse at one of its distribution points, such as (1) TCP Wrappers 7.6, (2) util-linux 2.9g, (3) wuarchive ftpd (wuftpd) 2.2 and 2.1f, (4) IRC client (ircII) ircII 2.2.9, (5) OpenSSH 3.4p1, or (6) Sendmail 8.12.6.",
    "epss_score": "0.54244",
    "epss_percentile": "0.98976",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:13:46",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "21919",
            "title": "Sendmail 8.12.6 - Compromised Source Backdoor",
            "date": "2002-10-08",
            "url": "https://www.exploit-db.com/exploits/21919"
        }
    ],
    "refs_list": [
        "http://marc.info/?l=bugtraq&m=102820843403741&w=2",
        "http://marc.info/?l=bugtraq&m=102821663814127&w=2",
        "http://online.securityfocus.com/archive/1/294539",
        "http://www.cert.org/advisories/CA-1994-07.html",
        "http://www.cert.org/advisories/CA-1994-14.html",
        "http://www.cert.org/advisories/CA-1999-01.html",
        "http://www.cert.org/advisories/CA-1999-02.html",
        "http://www.cert.org/advisories/CA-2002-28.html",
        "http://www.iss.net/security_center/static/10313.php",
        "http://www.securityfocus.com/bid/5921",
        "http://marc.info/?l=bugtraq&m=102820843403741&w=2",
        "http://marc.info/?l=bugtraq&m=102821663814127&w=2",
        "http://online.securityfocus.com/archive/1/294539",
        "http://www.cert.org/advisories/CA-1994-07.html",
        "http://www.cert.org/advisories/CA-1994-14.html",
        "http://www.cert.org/advisories/CA-1999-01.html",
        "http://www.cert.org/advisories/CA-1999-02.html",
        "http://www.cert.org/advisories/CA-2002-28.html",
        "http://www.iss.net/security_center/static/10313.php",
        "http://www.securityfocus.com/bid/5921"
    ]
}