{
  "cveId": "CVE-2026-79610",
  "url": "https://patchblox.com/security/cve/CVE-2026-79610",
  "summary": "CVE-2026-79610 is fixed in xen on 1 platform, first by DEBIAN-CVE-2026-79610, released October 19, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "xen: XSA-501 was about issues with v1 -\u003E v2 and v2 -\u003E v1 changes racing certain other grant table operations",
  "description": "XSA-501 was about issues with v1 -\u003E v2 and v2 -\u003E v1 changes racing certain other grant table operations.  Sadly a v2 -\u003E v1 -\u003E v2 change has yet another effect which wasn\u0027t accounted for: During the first change, status pages would be freed.  During the second change they would be allocated again.  Hence across the full pair of change the addresses of the status pages may change, rendering stale previously calculated pointers into the status array.",
  "published": "2026-10-13T16:17:23Z",
  "severity": "high",
  "cvss": 8.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "epss": 0.00148,
  "epssPercentile": 0.03987,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "4.17.7\u002B13-g2445b30a44-0\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2026-79610",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-79610",
      "released": "2026-10-19T16:27:52Z"
    },
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "4.20.4\u002B39-gf1e1321c87-0\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-79610",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-79610",
      "released": "2026-10-19T16:27:52Z"
    },
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 14",
      "fixedVersion": "4.20.4\u002B39-gf1e1321c87-1",
      "fix": "DEBIAN-CVE-2026-79610",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-79610",
      "released": "2026-10-19T16:27:52Z"
    },
    {
      "platform": "linux",
      "product": "xen",
      "release": "sles 15.7",
      "fixedVersion": "4.20.4_06-150700.3.49.2",
      "fix": "SUSE-SU-2026:4942-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4942-1",
      "released": "2026-11-07T00:43:02Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}