{
  "cveId": "CVE-2026-62430",
  "url": "https://patchblox.com/security/cve/CVE-2026-62430",
  "summary": "CVE-2026-62430 is fixed in xen on 1 platform, first by SUSE-SU-2026:3409-1, released July 29, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "xen: Accesses to the CMOS memory contents are done using an indirect IO port pair",
  "description": "Accesses to the CMOS memory contents are done using an indirect IO port pair.  Therefore Xen needs to cache the guest chosen index, and one of the usages of the index didn\u0027t take the necessary locking to avoid concurrent changes.  As a result, a guest could change the index after it being checked, causing a subsequent out-of-bound read access to the contents of an array.",
  "published": "2026-07-28T13:19:01Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
  "epss": 0.00243,
  "epssPercentile": 0.15576,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "4.17.7-0\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2026-62430",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-62430",
      "released": "2026-08-03T14:46:46Z"
    },
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "4.20.3\u002B127-gc42374a105-0\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-62430",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-62430",
      "released": "2026-08-03T14:46:46Z"
    },
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 14",
      "fixedVersion": "4.20.3\u002B127-gc42374a105-1",
      "fix": "DEBIAN-CVE-2026-62430",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-62430",
      "released": "2026-08-03T14:46:46Z"
    },
    {
      "platform": "linux",
      "product": "xen",
      "release": "sles 15.6",
      "fixedVersion": "4.18.5_20-150600.3.53.3",
      "fix": "SUSE-SU-2026:3409-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3409-1",
      "released": "2026-07-29T11:18:18Z"
    },
    {
      "platform": "linux",
      "product": "xen",
      "release": "sles 15.7",
      "fixedVersion": "4.20.4_04-150700.3.46.1",
      "fix": "SUSE-SU-2026:4090-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4090-1",
      "released": "2026-09-08T12:26:56Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-10T01:44:33Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}