{
  "cveId": "CVE-2023-26437",
  "url": "https://patchblox.com/security/cve/CVE-2023-26437",
  "summary": "CVE-2023-26437 is fixed in pdns-recursor on 1 platform, first by DEBIAN-CVE-2023-26437, released April 4, 2023. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "pdns-recursor: Denial of service vulnerability in PowerDNS Recursor allows authoritative servers to be marked unavailable.This issue...",
  "description": "Denial of service vulnerability in PowerDNS Recursor allows authoritative servers to be marked unavailable.This issue affects Recursor: through 4.6.5, through 4.7.4 , through 4.8.3.",
  "published": "2023-04-04T15:15:08Z",
  "severity": "medium",
  "cvss": 5.3,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
  "epss": 0.00593,
  "epssPercentile": 0.4858,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "pdns-recursor",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "4.8.4-1",
      "fix": "DEBIAN-CVE-2023-26437",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-26437",
      "released": "2023-04-04T15:15:08Z"
    },
    {
      "platform": "linux",
      "product": "pdns-recursor",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "4.8.4-1",
      "fix": "DEBIAN-CVE-2023-26437",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-26437",
      "released": "2023-04-04T15:15:08Z"
    },
    {
      "platform": "linux",
      "product": "pdns-recursor",
      "release": "Debian 14",
      "fixedVersion": "4.8.4-1",
      "fix": "DEBIAN-CVE-2023-26437",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-26437",
      "released": "2023-04-04T15:15:08Z"
    }
  ],
  "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"
  }
}