HDF5 H5Fint.c H5F_addr_decode_len heap-based overflow

{
  "id": "7f5ec792251ed31d1dfcd0d680fddd395c870236afb2235abacf883600c7cff2",
  "url": "https://osv.dev/vulnerability/CVE-2025-6516",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "HDF5 H5Fint.c H5F_addr_decode_len heap-based overflow",
    "summary": "A vulnerability has been found in HDF5 up to 1.14.6 and classified as critical. This vulnerability affects the function H5F_addr_decode_len of the file /hdf5/src/H5Fint.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.",
    "evidence": "osv:CVE-2025-6516",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2025-6516",
      "aliases": [
        "CVE-2025-6516"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/hdfgroup/hdf5",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0553fb7ac7f03a919c91cdbbd5648b8aadbe05af"
                },
                {
                  "last_affected": "7bf340440909d468dbb3cf41f0ea0d87f5050cea"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "1.14.0"
                      },
                      {
                        "last_affected": "1.14.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "1.14.1"
                      },
                      {
                        "last_affected": "1.14.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "1.14.2"
                      },
                      {
                        "last_affected": "1.14.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "1.14.3"
                      },
                      {
                        "last_affected": "1.14.3"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "1.14.4"
                      },
                      {
                        "last_affected": "1.14.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "1.14.5"
                      },
                      {
                        "last_affected": "1.14.5"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "1.14.6"
                      },
                      {
                        "last_affected": "1.14.6"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "cpe": "cpe:2.3:a:hdfgroup:hdf5:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.14.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.14.0",
            "1.14.1",
            "1.14.2",
            "1.14.3",
            "1.14.4",
            "1.14.5",
            "1.14.6"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-6516.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.410252754Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6516.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-6516",
        "https://vuldb.com/?id.313636",
        "https://vuldb.com/?submit.592589",
        "https://github.com/HDFGroup/hdf5/issues/5581",
        "https://vuldb.com/?ctiid.313636",
        "https://github.com/user-attachments/files/20626851/reproduce.tar.gz"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-119",
          "CWE-122"
        ],
        "cna_assigner": "VulDB",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6516.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-6516",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 500430,
  "published_at": "2025-06-23T17:00:17.189+00:00"
}