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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2021-2471

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 with network access via multiple protocols to compromise MySQL Connectors. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Connectors accessible data and 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).

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2021-2471
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 04:35 UTC · Revision 1

Source evidence

CVE-2021-2471

core-osv · Original source

Published 20 Oct 2021, 11:16 UTC

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 with network access via multiple protocols to compromise MySQL Connectors. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Connectors accessible data and 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).

osv:CVE-2021-2471
Complete source record
{
  "id": "9f5ddb7b553e0e7a5afc2472ba1428736d4ca4700dd4fd7a4f58f90147e4e2c9",
  "url": "https://osv.dev/vulnerability/CVE-2021-2471",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-2471",
    "summary": "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 with network access via multiple protocols to compromise MySQL Connectors. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Connectors accessible data and 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).",
    "evidence": "osv:CVE-2021-2471",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-2471",
      "aliases": [
        "CVE-2021-2471",
        "GHSA-w6f2-8wx4-47r5"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/quarkusio/quarkus",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "d0ffa05fe8b8fb258d6c177ff0427dd71d7d5210"
                },
                {
                  "introduced": "62bc0131470927666affac57e77a728bcf487621"
                },
                {
                  "fixed": "8c34d22c410ba3f16023e7c9d5e5f562ed0120c6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:quarkus:quarkus:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.2.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:quarkus:quarkus:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.3.0"
                      },
                      {
                        "fixed": "2.6.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-2471.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:20.504071608Z",
      "provider": "osv",
      "references": [
        "https://www.oracle.com/security-alerts/cpuapr2022.html",
        "https://www.oracle.com/security-alerts/cpuoct2021.html"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:oracle:mysql_connectors:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "oracle:mysql_connectors",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0.0"
                  },
                  {
                    "last_affected": "8.0.26"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:oracle:communications_cloud_native_core_console:1.9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "oracle:communications_cloud_native_core_console",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "1.9.0"
                  },
                  {
                    "last_affected": "1.9.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:oracle:communications_cloud_native_core_network_slice_selection_function:1.8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "oracle:communications_cloud_native_core_network_slice_selection_function",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "1.8.0"
                  },
                  {
                    "last_affected": "1.8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.15.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "oracle:communications_cloud_native_core_policy",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "1.15.0"
                  },
                  {
                    "last_affected": "1.15.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:oracle:communications_cloud_native_core_security_edge_protection_proxy:1.7.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "oracle:communications_cloud_native_core_security_edge_protection_proxy",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "1.7.0"
                  },
                  {
                    "last_affected": "1.7.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-2471",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 430288,
  "published_at": "2021-10-20T11:16:17.117+00:00"
}