{
  "cveId": "CVE-2026-11404",
  "url": "https://patchblox.com/security/cve/CVE-2026-11404",
  "summary": "CVE-2026-11404 is fixed in mongoose on 1 platform by DEBIAN-CVE-2026-11404 (version 7.22\u002Bds-1), released July 9, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "mongoose: Cesanta Mongoose before 7.22 contains an out-of-bounds read in the built-in TLS server function mg_tls_server_recv_he...",
  "description": "Cesanta Mongoose before 7.22 contains an out-of-bounds read in the built-in TLS server function mg_tls_server_recv_hello(), which uses an attacker-controlled session_id_len byte from a TLS ClientHello as a buffer index without validating it against the length of received data. A remote, unauthenticated attacker can send a single crafted ClientHello with an oversized session id length to read past the receive buffer, crashing any HTTPS, MQTTS, or WSS service built on MG_TLS_BUILTIN.",
  "published": "2026-07-09T16:16:34Z",
  "severity": "",
  "epss": 0.00784,
  "epssPercentile": 0.56288,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "mongoose",
      "release": "Debian 14",
      "fixedVersion": "7.22\u002Bds-1",
      "fix": "DEBIAN-CVE-2026-11404",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-11404",
      "released": "2026-07-09T16:16:34Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}