{
  "cveId": "CVE-2021-2471",
  "url": "https://patchblox.com/security/cve/CVE-2021-2471",
  "summary": "CVE-2021-2471 is fixed in 11 products on 1 platform, first by libmysqlclient21 8.0.27-0ubuntu0.20.04.1, released January 19, 2022. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libmysqlclient21: Vulnerability in the MySQL Connectors product of Oracle MySQL (component:Connector/J)",
  "description": "Vulnerability in the MySQL Connectors product of Oracle MySQL (component:Connector/J). Supported versions that are affected are 8.0.26 and prior.Difficult to exploit vulnerability allows high privileged attacker withnetwork access via multiple protocols to compromise MySQL Connectors.Successful attacks of this vulnerability can result in unauthorized accessto critical data or complete access to all MySQL Connectors accessible dataand unauthorized ability to cause a hang or frequently repeatable crash(complete DOS) of MySQL Connectors. CVSS 3.1 Base Score 5.9(Confidentiality and Availability impacts). CVSS Vector:(CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H).",
  "published": "2021-10-20T04:16:00Z",
  "severity": "Medium",
  "epss": 0.07493,
  "epssPercentile": 0.94518,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libmysqlclient21",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "8.0.27-0ubuntu0.20.04.1",
      "fix": "libmysqlclient21 8.0.27-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libmysqlclient21-8.0.27-0ubuntu0.20.04.1",
      "released": "2022-01-19T04:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libmysqlclient21",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "8.0.27-0ubuntu0.21.10.1",
      "fix": "libmysqlclient21 8.0.27-0ubuntu0.21.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libmysqlclient21-8.0.27-0ubuntu0.21.10.1",
      "released": "2022-01-19T04:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libmysqlclient21",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "8.0.27-0ubuntu0.21.10.1",
      "fix": "libmysqlclient21 8.0.27-0ubuntu0.21.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-libmysqlclient21-8.0.27-0ubuntu0.21.10.1",
      "released": "2026-01-16T01:42:22Z"
    },
    {
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      "product": "mysql-client",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "8.0.27-0ubuntu0.20.04.1",
      "fix": "mysql-client 8.0.27-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-mysql-client-8.0.27-0ubuntu0.20.04.1",
      "released": "2022-01-19T04:15:00Z"
    },
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      "platform": "linux",
      "product": "mysql-client",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "8.0.27-0ubuntu0.21.10.1",
      "fix": "mysql-client 8.0.27-0ubuntu0.21.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-mysql-client-8.0.27-0ubuntu0.21.10.1",
      "released": "2022-01-19T04:15:00Z"
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      "fixedVersion": "8.0.27-0ubuntu0.21.10.1",
      "fix": "mysql-client 8.0.27-0ubuntu0.21.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-mysql-client-8.0.27-0ubuntu0.21.10.1",
      "released": "2026-01-16T01:42:22Z"
    },
    {
      "platform": "linux",
      "product": "mysql-client-8.0",
      "release": "Ubuntu 20.04 LTS (focal)",
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      "fix": "mysql-client-8.0 8.0.27-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-mysql-client-8.0-8.0.27-0ubuntu0.20.04.1",
      "released": "2022-01-19T04:15:00Z"
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      "product": "mysql-client-8.0",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
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      "released": "2026-01-16T01:42:22Z"
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      "released": "2022-01-19T04:15:00Z"
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      "release": "Ubuntu 22.04.1 LTS (jammy)",
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      "released": "2026-01-16T01:42:22Z"
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    {
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      "product": "mysql-router",
      "release": "Ubuntu 20.04 LTS (focal)",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-mysql-router-8.0.27-0ubuntu0.20.04.1",
      "released": "2022-01-19T04:15:00Z"
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      "platform": "linux",
      "product": "mysql-router",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-mysql-router-8.0.27-0ubuntu0.21.10.1",
      "released": "2022-01-19T04:15:00Z"
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      "product": "mysql-router",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-mysql-router-8.0.27-0ubuntu0.21.10.1",
      "released": "2026-01-16T01:42:22Z"
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  ],
  "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"
  }
}