{
  "fix": "RHSA-2026:49030",
  "url": "https://patchblox.com/security/fix/linux/rhsa-2026-49030",
  "summary": "RHSA-2026:49030, released August 1, 2026, fixes 4 CVEs in kernel (version 6.12.0-55.94.1.el10_0). None of them is reported as exploited. Patch Radar priority: Urgent.",
  "platform": "linux",
  "type": "advisory",
  "title": "kernel security update",
  "released": "2026-08-01T14:30:14Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2026-64562, rated Critical",
  "supported": true,
  "cveCount": 4,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00273,
  "maxCvss": 9.8,
  "vendorAdvisory": "https://access.redhat.com/errata/RHSA-2026:49030",
  "appliesTo": [
    {
      "product": "kernel",
      "productUrl": "https://patchblox.com/security/product/linux/kernel",
      "release": "RHEL 10",
      "fixedVersion": "6.12.0-55.94.1.el10_0",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-64562",
      "url": "https://patchblox.com/security/cve/CVE-2026-64562",
      "title": "KVM: nVMX: Hide shadow VMCS right after VMCLEAR",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 9.8,
      "epss": 0.00162,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-64561",
      "url": "https://patchblox.com/security/cve/CVE-2026-64561",
      "title": "KVM: x86: Check for invalid/obsolete root *after* making MMU pages available",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 8.8,
      "epss": 0.00273,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-63807",
      "url": "https://patchblox.com/security/cve/CVE-2026-63807",
      "title": "KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00173,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-40026",
      "url": "https://patchblox.com/security/cve/CVE-2025-40026",
      "title": "KVM: x86: Don\u0027t (re)check L1 intercepts when completing userspace I/O",
      "priority": "High",
      "severity": "Low",
      "cvss": 7.9,
      "epss": 0.0017,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T12:40:37Z"
}