{
    "id": "CVE-2009-3525",
    "published": "2009-10-05 19:30:00",
    "last_modified": "2026-06-16 23:11:46",
    "cvss_score": "7.2",
    "cvss_severity": "HIGH",
    "cvss_version": "2.0",
    "cvss_vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
    "cwe": "CWE-264",
    "description": "The pyGrub boot loader in Xen 3.0.3, 3.3.0, and Xen-3.3.1 does not support the password option in grub.conf for para-virtualized guests, which allows attackers with access to the para-virtualized guest console to boot the guest or modify the guest's kernel boot parameters without providing the expected password.",
    "epss_score": "0.01240",
    "epss_percentile": "0.68321",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-11 18:17:08",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "xen",
            "product": "xen"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "33255",
            "title": "Xen 3.x - pygrub Local Authentication Bypass",
            "date": "2009-09-25",
            "url": "https://www.exploit-db.com/exploits/33255"
        }
    ],
    "refs_list": [
        "http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00002.html",
        "http://secunia.com/advisories/36908",
        "http://www.openwall.com/lists/oss-security/2009/09/25/1",
        "http://www.redhat.com/support/errata/RHSA-2009-1472.html",
        "http://www.securityfocus.com/bid/36523",
        "http://www.securitytracker.com/id?1022950",
        "http://xenbits.xensource.com/xen-unstable.hg?rev/8f783adc0ee3",
        "https://bugzilla.redhat.com/show_bug.cgi?id=525740",
        "https://bugzilla.redhat.com/show_bug.cgi?id=525740#c0",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9466",
        "http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00002.html",
        "http://secunia.com/advisories/36908",
        "http://www.openwall.com/lists/oss-security/2009/09/25/1",
        "http://www.redhat.com/support/errata/RHSA-2009-1472.html",
        "http://www.securityfocus.com/bid/36523",
        "http://www.securitytracker.com/id?1022950",
        "http://xenbits.xensource.com/xen-unstable.hg?rev/8f783adc0ee3",
        "https://bugzilla.redhat.com/show_bug.cgi?id=525740",
        "https://bugzilla.redhat.com/show_bug.cgi?id=525740#c0",
        "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9466"
    ]
}