{
  "cveId": "CVE-2018-16855",
  "url": "https://patchblox.com/security/cve/CVE-2018-16855",
  "summary": "CVE-2018-16855 is fixed in pdns-recursor on 1 platform, first by pdns-recursor 4.1.8-1, released January 16, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "pdns-recursor: An issue has been found in PowerDNS Recursor before version 4.1.8 where aremote attacker sending a DNS query can trig...",
  "description": "An issue has been found in PowerDNS Recursor before version 4.1.8 where aremote attacker sending a DNS query can trigger an out-of-bounds memoryread while computing the hash of the query for a packet cache lookup,possibly leading to a crash.",
  "severity": "Medium",
  "epss": 0.58577,
  "epssPercentile": 0.99106,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "pdns-recursor",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "4.1.8-1",
      "fix": "pdns-recursor 4.1.8-1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-pdns-recursor-4.1.8-1",
      "released": "2026-01-16T01:42:22Z"
    },
    {
      "platform": "linux",
      "product": "pdns-recursor",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "4.1.8-1",
      "fix": "pdns-recursor 4.1.8-1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-pdns-recursor-4.1.8-1",
      "released": "2026-01-16T01:42:24Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}