{
    "id": "CVE-2015-3456",
    "published": "2015-05-13 18:59:00",
    "last_modified": "2026-06-17 00:25:57",
    "cvss_score": "7.7",
    "cvss_severity": "HIGH",
    "cvss_version": "2.0",
    "cvss_vector": "AV:A/AC:L/Au:S/C:C/I:C/A:C",
    "cwe": "CWE-119",
    "description": "The Floppy Disk Controller (FDC) in QEMU, as used in Xen 4.5.x and earlier and KVM, allows local guest users to cause a denial of service (out-of-bounds write and guest crash) or possibly execute arbitrary code via the (1) FD_CMD_READ_ID, (2) FD_CMD_DRIVE_SPECIFICATION_COMMAND, or other unspecified commands, aka VENOM.",
    "epss_score": "0.15275",
    "epss_percentile": "0.96664",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-30 18:17:14",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "qemu",
            "product": "qemu"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_virtualization"
        },
        {
            "vendor": "redhat",
            "product": "openstack"
        },
        {
            "vendor": "xen",
            "product": "xen"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "37053",
            "title": "QEMU - Floppy Disk Controller (FDC) (PoC)",
            "date": "2015-05-18",
            "url": "https://www.exploit-db.com/exploits/37053"
        }
    ],
    "refs_list": [
        "http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=e907746266721f305d67bc0718795fedee2e824c",
        "http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10693",
        "http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158072.html",
        "http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00009.html",
        "http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00013.html",
        "http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00014.html",
        "http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00018.html",
        "http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00019.html",
        "http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00021.html",
        "http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00042.html",
        "http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00001.html",
        "http://lists.opensuse.org/opensuse-updates/2015-08/msg00021.html",
        "http://marc.info/?l=bugtraq&m=143229451215900&w=2",
        "http://marc.info/?l=bugtraq&m=143387998230996&w=2",
        "http://rhn.redhat.com/errata/RHSA-2015-0998.html",
        "http://rhn.redhat.com/errata/RHSA-2015-0999.html",
        "http://rhn.redhat.com/errata/RHSA-2015-1000.html",
        "http://rhn.redhat.com/errata/RHSA-2015-1001.html",
        "http://rhn.redhat.com/errata/RHSA-2015-1002.html",
        "http://rhn.redhat.com/errata/RHSA-2015-1003.html",
        "http://rhn.redhat.com/errata/RHSA-2015-1004.html",
        "http://rhn.redhat.com/errata/RHSA-2015-1011.html",
        "http://support.citrix.com/article/CTX201078",
        "http://venom.crowdstrike.com/",
        "http://www.debian.org/security/2015/dsa-3259"
    ]
}