{
  "cveId": "CVE-2021-34434",
  "url": "https://patchblox.com/security/cve/CVE-2021-34434",
  "summary": "CVE-2021-34434 is fixed in 4 products on 1 platform, first by DSA-5511-1, released October 1, 2023. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "mosquitto: mosquitto - security update",
  "description": "mosquitto - security update",
  "published": "2021-08-30T13:15:00Z",
  "severity": "Medium",
  "epss": 0.0133,
  "epssPercentile": 0.7125,
  "priority": "Routine",
  "priorityTier": 4,
  "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 11.6 (bullseye)",
      "fixedVersion": "2.0.11-1\u002Bdeb11u1",
      "fix": "DSA-5511-1",
      "url": "https://patchblox.com/security/fix/linux/dsa-5511-1",
      "released": "2023-10-01T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "mosquitto",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "2.0.11-1.2\u002Bdeb12u1",
      "fix": "DSA-5511-1",
      "url": "https://patchblox.com/security/fix/linux/dsa-5511-1",
      "released": "2023-10-01T00:00:00Z"
    },
    {
      "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": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}