{
  "cveId": "CVE-2025-67896",
  "url": "https://patchblox.com/security/cve/CVE-2025-67896",
  "summary": "CVE-2025-67896 is fixed in exim4 on 1 platform by DEBIAN-CVE-2025-67896 (version 4.99-7), released December 14, 2025. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "exim4: Exim before 4.99.1, with certain non-default rate-limit configurations, allows a remote heap-based buffer overflow be...",
  "description": "Exim before 4.99.1, with certain non-default rate-limit configurations, allows a remote heap-based buffer overflow because database records are cast directly to internal structures without validation.",
  "published": "2025-12-14T04:15:50Z",
  "severity": "critical",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.0047,
  "epssPercentile": 0.40875,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "exim4",
      "release": "Debian 14",
      "fixedVersion": "4.99-7",
      "fix": "DEBIAN-CVE-2025-67896",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-67896",
      "released": "2025-12-14T04:15:50Z"
    }
  ],
  "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"
  }
}