{
    "id": "CVE-2003-0190",
    "published": "2003-05-12 04:00:00",
    "last_modified": "2026-06-16 22:01:43",
    "cvss_score": "5.0",
    "cvss_severity": "MEDIUM",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
    "cwe": "CWE-203",
    "description": "OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an error message when a user does not exist, which allows remote attackers to determine valid usernames via a timing attack.",
    "epss_score": "0.76751",
    "epss_percentile": "0.99533",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:14:14",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "openbsd",
            "product": "openssh"
        },
        {
            "vendor": "openpkg",
            "product": "openpkg"
        },
        {
            "vendor": "siemens",
            "product": "scalance_x204rna"
        },
        {
            "vendor": "siemens",
            "product": "scalance_x204rna_ecc"
        },
        {
            "vendor": "siemens",
            "product": "scalance_x204rna_ecc_firmware"
        },
        {
            "vendor": "siemens",
            "product": "scalance_x204rna_firmware"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "3303",
            "title": "Portable OpenSSH 3.6.1p-PAM/4.1-SuSE - Timing Attack",
            "date": "2007-02-13",
            "url": "https://www.exploit-db.com/exploits/3303"
        },
        {
            "source": "exploit-db",
            "ref_id": "26",
            "title": "OpenSSH/PAM 3.6.1p1 - 'gossh.sh' Remote Users Ident",
            "date": "2003-05-02",
            "url": "https://www.exploit-db.com/exploits/26"
        },
        {
            "source": "exploit-db",
            "ref_id": "25",
            "title": "OpenSSH/PAM 3.6.1p1 - Remote Users Discovery Tool",
            "date": "2003-04-30",
            "url": "https://www.exploit-db.com/exploits/25"
        }
    ],
    "refs_list": [
        "http://lab.mediaservice.net/advisory/2003-01-openssh.txt",
        "http://lists.grok.org.uk/pipermail/full-disclosure/2003-April/004815.html",
        "http://marc.info/?l=bugtraq&m=105172058404810&w=2",
        "http://marc.info/?l=bugtraq&m=106018677302607&w=2",
        "http://www.redhat.com/support/errata/RHSA-2003-222.html",
        "http://www.redhat.com/support/errata/RHSA-2003-224.html",
        "http://www.securityfocus.com/bid/7467",
        "http://www.turbolinux.com/security/TLSA-2003-31.txt",
        "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A445",
        "http://lab.mediaservice.net/advisory/2003-01-openssh.txt",
        "http://lists.grok.org.uk/pipermail/full-disclosure/2003-April/004815.html",
        "http://marc.info/?l=bugtraq&m=105172058404810&w=2",
        "http://marc.info/?l=bugtraq&m=106018677302607&w=2",
        "http://www.redhat.com/support/errata/RHSA-2003-222.html",
        "http://www.redhat.com/support/errata/RHSA-2003-224.html",
        "http://www.securityfocus.com/bid/7467",
        "http://www.turbolinux.com/security/TLSA-2003-31.txt",
        "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A445"
    ]
}