{
  "cveId": "CVE-2023-28366",
  "url": "https://patchblox.com/security/cve/CVE-2023-28366",
  "summary": "CVE-2023-28366 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2023-28366, released September 1, 2023. It is not reported as exploited. Patch Radar priority: High.",
  "title": "mosquitto: The broker in Eclipse Mosquitto 1.3.2 through 2.x before 2.0.16 has a memory leak that can be abused remotely when a...",
  "description": "The broker in Eclipse Mosquitto 1.3.2 through 2.x before 2.0.16 has a memory leak that can be abused remotely when a client sends many QoS 2 messages with duplicate message IDs, and fails to respond to PUBREC commands. This occurs because of mishandling of EAGAIN from the libc send function.",
  "published": "2023-09-01T09:15:00Z",
  "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": 0.0131,
  "epssPercentile": 0.70825,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libmosquitto1",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.0.11-1ubuntu1.1",
      "fix": "libmosquitto1 2.0.11-1ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libmosquitto1-2.0.11-1ubuntu1.1",
      "released": "2023-10-02T13:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libmosquittopp1",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.0.11-1ubuntu1.1",
      "fix": "libmosquittopp1 2.0.11-1ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libmosquittopp1-2.0.11-1ubuntu1.1",
      "released": "2023-10-02T13:15:00Z"
    },
    {
      "platform": "linux",
      "product": "mosquitto",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "2.0.11-1.2\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2023-28366",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-28366",
      "released": "2023-09-01T16:15:07Z"
    },
    {
      "platform": "linux",
      "product": "mosquitto",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2.0.17-1",
      "fix": "DEBIAN-CVE-2023-28366",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-28366",
      "released": "2023-09-01T16:15:07Z"
    },
    {
      "platform": "linux",
      "product": "mosquitto",
      "release": "Debian 14",
      "fixedVersion": "2.0.17-1",
      "fix": "DEBIAN-CVE-2023-28366",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-28366",
      "released": "2023-09-01T16:15:07Z"
    },
    {
      "platform": "linux",
      "product": "mosquitto",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.0.11-1ubuntu1.1",
      "fix": "mosquitto 2.0.11-1ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-mosquitto-2.0.11-1ubuntu1.1",
      "released": "2023-10-02T13:15:00Z"
    },
    {
      "platform": "linux",
      "product": "mosquitto-clients",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.0.11-1ubuntu1.1",
      "fix": "mosquitto-clients 2.0.11-1ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-mosquitto-clients-2.0.11-1ubuntu1.1",
      "released": "2023-10-02T13:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}