{
  "cveId": "CVE-2026-42495",
  "url": "https://patchblox.com/security/cve/CVE-2026-42495",
  "summary": "CVE-2026-42495 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: Routine.",
  "title": "xen: [This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to...",
  "description": "[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]  The directory and Rock Ridge / SUSP walk in libfsimage\u0027s iso9660 driver derives several lengths directly from attacker-controlled on-disk fields without validating them:   * The directory loop itself assumes a good record length.  This is    CVE-2026-42494.   * The calculation of the System Use area may underflow.  This is    CVE-2026-42495.   * The Rock Ridge extension loop assumes a good (inner) record length.    This is CVE-2026-62423.   * The Rock Ridge NM record processing assumes a good entry length.    This is CVE-2026-62424.   * The Rock Ridge CE record processing assumes a good size and offset.    This is CVE-2026-62425.",
  "published": "2026-07-28T13:18:32Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
  "epss": 0.00198,
  "epssPercentile": 0.09539,
  "priority": "Routine",
  "priorityTier": 4,
  "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-2026-42495",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-42495",
      "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-2026-42495",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-42495",
      "released": "2026-08-03T14:46:46Z"
    },
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 14",
      "fixedVersion": "4.20.3\u002B127-gc42374a105-1",
      "fix": "DEBIAN-CVE-2026-42495",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-42495",
      "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": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}