{
  "cveId": "CVE-2026-81666",
  "url": "https://patchblox.com/security/cve/CVE-2026-81666",
  "summary": "CVE-2026-81666 is fixed in corosync on 1 platform, first by SUSE-SU-2026:4202-1, released September 16, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "corosync: This update for corosync fixes the following issues:\n\n- CVE-2026-81665: heap-based buffer overflow in totempg assembl...",
  "description": "This update for corosync fixes the following issues:\n\n- CVE-2026-81665: heap-based buffer overflow in totempg assembly buffer during fragmented message reassembly\n  (bsc#1278738).\n- CVE-2026-81666: integer overflow in check_memb_commit_token_sanity may bypass message length validation on 32-bit\n  systems (bsc#1278739).",
  "published": "2026-09-16T08:18:19Z",
  "severity": "",
  "epss": 0.00246,
  "epssPercentile": 0.15957,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "corosync",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "3.1.9-160000.4.1",
      "fix": "OPENSUSE-SU-2026:21887-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21887-1",
      "released": "2026-09-20T04:53:02Z"
    },
    {
      "platform": "linux",
      "product": "corosync",
      "release": "sles 15.6",
      "fixedVersion": "2.4.6-150300.12.19.1",
      "fix": "SUSE-SU-2026:4202-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4202-1",
      "released": "2026-09-16T08:18:19Z"
    },
    {
      "platform": "linux",
      "product": "corosync",
      "release": "sles 15.7",
      "fixedVersion": "2.4.6-150300.12.19.1",
      "fix": "SUSE-SU-2026:4202-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4202-1",
      "released": "2026-09-16T08:18:19Z"
    },
    {
      "platform": "linux",
      "product": "corosync",
      "release": "sles 16.0",
      "fixedVersion": "3.1.9-160000.4.1",
      "fix": "SUSE-SU-2026:23850-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23850-1",
      "released": "2026-09-20T04:53:53Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-10T13:56:55Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}