{
  "cveId": "CVE-2026-102702",
  "url": "https://patchblox.com/security/cve/CVE-2026-102702",
  "summary": "CVE-2026-102702 is fixed in xen on 1 platform, first by DEBIAN-CVE-2026-102702, released October 19, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "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.]  1) XSA-437 (CVE-2023-34321) addressed issues with overflows in    calculations involved in guests flushing caches through    GNTTABOP_cache_flush.  Unfortunately the fix there introduced a    calculation which may underflow, resulting in a loop which would - at    least on 64-bit Arm - take excessively long, and which would likely    eventually crash the hypervisor.     This is CVE-2026-102699.  2) GNTTABOP_cache_flush may be issued on memory mapped from another    domain using the grant table interface.  However there was no    restriction to disallow the use of invalidate-without-clean against    read-only grant mappings, which may corrupt the granted memory.     This is CVE-2026-102702.",
  "published": "2026-10-13T16:17:09Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00292,
  "epssPercentile": 0.21865,
  "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-2026-102702",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-102702",
      "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-2026-102702",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-102702",
      "released": "2026-10-19T16:27:52Z"
    },
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 14",
      "fixedVersion": "4.20.4\u002B39-gf1e1321c87-1",
      "fix": "DEBIAN-CVE-2026-102702",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-102702",
      "released": "2026-10-19T16:27:52Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}