{
  "cveId": "CVE-2026-18321",
  "url": "https://patchblox.com/security/cve/CVE-2026-18321",
  "summary": "CVE-2026-18321 is fixed in ntpsec on 1 platform by DEBIAN-CVE-2026-18321 (version 1.2.5\u002Bdfsg-1), released July 31, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "ntpsec: Buffer overflow in NTPsec\u0027s Zyfer refclock allows local attacker to crash ntpd",
  "description": "Buffer overflow in NTPsec\u0027s Zyfer refclock allows local attacker to crash ntpd",
  "published": "2026-07-31T19:17:08Z",
  "severity": "medium",
  "cvss": 4.7,
  "cvssVector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00111,
  "epssPercentile": 0.01348,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "ntpsec",
      "release": "Debian 14",
      "fixedVersion": "1.2.5\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2026-18321",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-18321",
      "released": "2026-07-31T19:17:08Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}