{
    "id": "CVE-2017-7228",
    "published": "2017-04-04 14:59:00",
    "last_modified": "2026-06-17 01:23:54",
    "cvss_score": "8.2",
    "cvss_severity": "HIGH",
    "cvss_version": "3.0",
    "cvss_vector": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
    "cwe": "CWE-129",
    "description": "An issue (known as XSA-212) was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEM_exchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays.",
    "epss_score": "0.01569",
    "epss_percentile": "0.74645",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-10 18:17:16",
    "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": "41870",
            "title": "Xen - Broken Check in 'memory_exchange()' Permits PV Guest Breakout",
            "date": "2017-04-11",
            "url": "https://www.exploit-db.com/exploits/41870"
        }
    ],
    "refs_list": [
        "http://openwall.com/lists/oss-security/2017/04/04/3",
        "http://www.debian.org/security/2017/dsa-3847",
        "http://www.securityfocus.com/bid/97375",
        "http://www.securitytracker.com/id/1038223",
        "http://xenbits.xen.org/xsa/advisory-212.html",
        "https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-029-2017.txt",
        "https://googleprojectzero.blogspot.com/2017/04/pandavirtualization-exploiting-xen.html",
        "https://www.exploit-db.com/exploits/41870/",
        "http://openwall.com/lists/oss-security/2017/04/04/3",
        "http://www.debian.org/security/2017/dsa-3847",
        "http://www.securityfocus.com/bid/97375",
        "http://www.securitytracker.com/id/1038223",
        "http://xenbits.xen.org/xsa/advisory-212.html",
        "https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-029-2017.txt",
        "https://googleprojectzero.blogspot.com/2017/04/pandavirtualization-exploiting-xen.html",
        "https://www.exploit-db.com/exploits/41870/"
    ]
}