x86: mismatched mapcache metadata_CVE-2026-42488

{
    "lastseen": "",
    "description": "Some shadow paging errors paths will switch the page-tables without\nupdating the currently running vCPU reference.  This causes a mismatch\nbetween the loaded page-tables and the mapcache metadata which can lead\nto corruption of the mapcache.",
    "published": "2026-06-18T13:47:23.838Z",
    "modified": "2026-06-18T15:07:35.190Z",
    "type": "cve",
    "title": "x86: mismatched mapcache metadata",
    "source": "XEN",
    "references": "https://xenbits.xenproject.org/xsa/advisory-494.html",
    "id": "CVE-2026-42488",
    "bulletinFamily": "",
    "cwe": [
        "CWE-119"
    ],
    "cvelist": null,
    "sourceData": "",
    "sourceHref": "",
    "cvss": {
        "score": 8.1,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Xen",
    "version": "consult Xen advisory XSA-494",
    "vendor": "Xen",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}