{
  "cveId": "CVE-2025-9784",
  "url": "https://patchblox.com/security/cve/CVE-2025-9784",
  "summary": "CVE-2025-9784 is fixed in undertow on 1 platform by DEBIAN-CVE-2025-9784 (version 2.3.20-1), released September 2, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "undertow: A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering...",
  "description": "A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering abuse counters. This issue, referred to as the \u0022MadeYouReset\u0022 attack, allows malicious clients to induce excessive server workload by repeatedly causing server-side stream aborts. While not a protocol bug, this highlights a common implementation weakness that can be exploited to cause a denial of service (DoS).",
  "published": "2025-09-02T14:15:36Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.02325,
  "epssPercentile": 0.83596,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "undertow",
      "release": "Debian 14",
      "fixedVersion": "2.3.20-1",
      "fix": "DEBIAN-CVE-2025-9784",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-9784",
      "released": "2025-09-02T14:15:36Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}