cve-2025-27821

HIGH CVSS 7.3 opencve
Description

Out-of-bounds Write vulnerability in Apache Hadoop HDFS native client. This issue affects Apache Hadoop: from 3.2.0 before 3.4.2. Users are recommended to upgrade to version 3.4.2, which fixes the issue.

Timeline
Published
2026-01-26 10:16 UTC
Last Modified
2026-06-17
CVSS Details

CVSS details not available.

Affected Products

No product information available.

Weaknesses (CWE)
CVSS metrics
Version Base Severity Vector Exploitability Impact Source
3.1 7.3 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L nvd
3.1 7.3 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L opencve
3.1 7.3 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L vulnrichment
References

No references available.

Linked Vulnerabilities

{
  "advisories": [
    {
      "id": "GHSA-92cc-952p-v8rh",
      "source": "ghsa",
      "title": "Apache Hadoop HDFS Native Client has Out-of-bounds Write Vulnerability ",
      "url": "https://github.com/advisories/GHSA-92cc-952p-v8rh"
    }
  ],
  "cve": "CVE-2025-27821",
  "enrichment": {
    "created": "2026-01-27T20:17:54.874909+00:00",
    "updated": "2026-01-27T20:17:54.874935+00:00",
    "vendors": [
      "apache",
      "apache$PRODUCT$hadoop"
    ]
  },
  "epss": {
    "score": 0.00964
  },
  "mitre": {
    "cpes": [],
    "created": "2026-01-26T09:44:13.532000+00:00",
    "description": "Out-of-bounds Write vulnerability in Apache Hadoop HDFS native client.\n\nThis issue affects Apache Hadoop: from 3.2.0 before 3.4.2.\n\nUsers are recommended to upgrade to version 3.4.2, which fixes the issue.",
    "metrics": {
      "cvssV2_0": {},
      "cvssV3_0": {},
      "cvssV3_1": {},
      "cvssV4_0": {}
    },
    "mitre_repo_path": "cves/2025/27xxx/CVE-2025-27821.json",
    "references": [
      "https://lists.apache.org/thread/kwjhyyx0wl2z9b0mw0styjk0hhdbyplh"
    ],
    "title": "HDFS native client: Out of bounds write in URI parser of native HDFS client",
    "updated": "2026-01-26T18:13:19.241000+00:00",
    "vendors": [],
    "weaknesses": [
      "CWE-787"
    ]
  },
  "nvd": {
    "cpes": [
      "cpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*"
    ],
    "created": "2026-01-26T10:16:05.033000+00:00",
    "description": "Out-of-bounds Write vulnerability in Apache Hadoop HDFS native client.\n\nThis issue affects Apache Hadoop: from 3.2.0 before 3.4.2.\n\nUsers are recommended to upgrade to version 3.4.2, which fixes the issue.",
    "metrics": {
      "cvssV2_0": {},
      "cvssV3_0": {},
      "cvssV3_1": {
        "score": 7.3,
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
      },
      "cvssV4_0": {}
    },
    "nvd_repo_path": "2025/CVE-2025-27821.json",
    "references": [
      "http://www.openwall.com/lists/oss-security/2026/01/23/7",
      "https://lists.apache.org/thread/kwjhyyx0wl2z9b0mw0styjk0hhdbyplh"
    ],
    "title": null,
    "updated": "2026-06-17T09:04:16.920000+00:00",
    "vendors": [
      "apache",
      "apache$PRODUCT$hadoop"
    ],
    "weaknesses": [
      "CWE-787"
    ]
  },
  "opencve": {
    "changes": [
      {
        "created": "2026-01-26T10:00:00+00:00",
        "data": [
          {
            "details": {
              "new": "Out-of-bounds Write vulnerability in Apache Hadoop HDFS native client.\n\nThis issue affects Apache Hadoop: from 3.2.0 before 3.4.2.\n\nUsers are recommended to upgrade to version 3.4.2, which fixes the issue.",
              "old": null
            },
            "type": "description"
          },
          {
            "details": {
              "new": "HDFS native client: Out of bounds write in URI parser of native HDFS client",
              "old": null
            },
            "type": "title"
          },
          {
            "details": {
              "added": [
                "CWE-787"
              ],
              "removed": []
            },
            "type": "weaknesses"
          },
          {
            "details": {
              "added": [
                "https://lists.apache.org/thread/kwjhyyx0wl2z9b0mw0styjk0hhdbyplh"
              ],
              "removed": []
            },
            "type": "references"
          }
        ],
        "id": "0608819a-f09b-4014-bee4-8ca2a01934b2"
      },
      {
        "created": "2026-01-26T10:30:00+00:00",
        "data": [
          {
            "details": {
              "added": [
                "http://www.openwall.com/lists/oss-security/2026/01/23/7"
              ],
              "removed": []
            },
            "type": "references"
          }
        ],
        "id": "61fb7057-1036-4e75-a972-73e83019c140"
      },
      {
        "created": "2026-01-26T19:15:00+00:00",
        "data": [
          {
            "details": {
              "added": {
                "cvssV3_1": {
                  "score": 7.3,
                  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
                },
                "ssvc": {
                  "options": {
                    "Automatable": "yes",
                    "Exploitation": "none",
                    "Technical Impact": "partial"
                  },
                  "version": "2.0.3"
                }
              },
              "removed": {},
              "updated": {}
            },
            "type": "metrics"
          }
        ],
        "id": "3b2b3c9a-8fe6-49d1-afb7-9619f495af21"
      },
      {
        "created": "2026-01-27T20:30:00+00:00",
        "data": [
          {
            "details": [
              "apache",
              "apache$PRODUCT$hadoop"
            ],
            "type": "first_time"
          },
          {
            "details": {
              "added": [
                "apache",
                "apache$PRODUCT$hadoop"
              ],
              "removed": []
            },
            "type": "vendors"
          }
        ],
        "id": "4ac3f3b5-ac77-4b87-9b90-963d2bb72720"
      },
      {
        "created": "2026-01-27T20:45:00+00:00",
        "data": [
          {
            "details": {
              "added": [
                "cpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*"
              ],
              "removed": []
            },
            "type": "cpes"
          }
        ],
        "id": "e32d9b1c-e960-4491-a8b8-3cbe32f24734"
      }
    ],
    "cpes": {
      "data": [
        "cpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*"
      ],
      "providers": [
        "nvd"
      ]
    },
    "created": {
      "data": "2026-01-26T09:44:13.532000+00:00",
      "provider": "mitre"
    },
    "description": {
      "data": "Out-of-bounds Write vulnerability in Apache Hadoop HDFS native client.\n\nThis issue affects Apache Hadoop: from 3.2.0 before 3.4.2.\n\nUsers are recommended to upgrade to version 3.4.2, which fixes the issue.",
      "provider": "mitre"
    },
    "metrics": {
      "cvssV2_0": {
        "data": {},
        "provider": null
      },
      "cvssV3_0": {
        "data": {},
        "provider": null
      },
      "cvssV3_1": {
        "data": {
          "score": 7.3,
          "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
        },
        "provider": "vulnrichment"
      },
      "cvssV4_0": {
        "data": {},
        "provider": null
      },
      "epss": {
        "data": {
          "score": 0.00964
        },
        "provider": "first"
      },
      "kev": {
        "data": {},
        "provider": null
      },
      "ssvc": {
        "data": {
          "options": {
            "Automatable": "yes",
            "Exploitation": "none",
            "Technical Impact": "partial"
          },
          "version": "2.0.3"
        },
        "provider": "vulnrichment"
      },
      "threat_severity": {
        "data": null,
        "provider": null
      }
    },
    "references": {
      "data": [
        "http://www.openwall.com/lists/oss-security/2026/01/23/7",
        "https://lists.apache.org/thread/kwjhyyx0wl2z9b0mw0styjk0hhdbyplh"
      ],
      "providers": [
        "mitre",
        "nvd"
      ]
    },
    "title": {
      "data": "HDFS native client: Out of bounds write in URI parser of native HDFS client",
      "provider": "mitre"
    },
    "updated": {
      "data": "2026-01-27T20:30:26.927000+00:00",
      "provider": "nvd"
    },
    "vendors": {
      "data": [
        "apache",
        "apache$PRODUCT$hadoop"
      ],
      "providers": [
        "nvd",
        "enrichment"
      ]
    },
    "weaknesses": {
      "data": [
        "CWE-787"
      ],
      "providers": [
        "mitre",
        "nvd"
      ]
    }
  },
  "vulnrichment": {
    "cpes": [],
    "created": "2026-01-26T09:44:13.532000+00:00",
    "description": "Out-of-bounds Write vulnerability in Apache Hadoop HDFS native client.\n\nThis issue affects Apache Hadoop: from 3.2.0 before 3.4.2.\n\nUsers are recommended to upgrade to version 3.4.2, which fixes the issue.",
    "metrics": {
      "cvssV2_0": {},
      "cvssV3_0": {},
      "cvssV3_1": {
        "score": 7.3,
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
      },
      "cvssV4_0": {},
      "kev": {},
      "ssvc": {
        "options": {
          "Automatable": "yes",
          "Exploitation": "none",
          "Technical Impact": "partial"
        },
        "version": "2.0.3"
      }
    },
    "references": [],
    "title": "HDFS native client: Out of bounds write in URI parser of native HDFS client",
    "updated": "2026-01-26T18:13:06.272000+00:00",
    "vendors": [],
    "vulnrichment_repo_path": "2025/27xxx/CVE-2025-27821.json",
    "weaknesses": []
  }
}
Enrichment data
View JSON API Download JSON