CVE-2026-29043

{
  "id": "CVE-2026-29043",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-10T16:16:30.693",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "HDF5 is software for managing data. In 1.14.1-2 and earlier, an attacker who can control an h5 file parsed by HDF5 can trigger a write-based heap buffer overflow condition in the H5T__ref_mem_setnull method. This can lead to a denial-of-service condition, and potentially further issues such as remote code execution depending on the practical exploitability of the heap overflow against modern operating systems."
    },
    {
      "lang": "es",
      "value": "HDF5 es un software para la gestión de datos. En 1.14.1-2 y versiones anteriores, un atacante que puede controlar un archivo h5 analizado por HDF5 puede desencadenar una condición de desbordamiento de búfer de montículo basado en escritura en el método H5T__ref_mem_setnull. Esto puede llevar a una condición de denegación de servicio y, potencialmente, a problemas adicionales como la ejecución remota de código, dependiendo de la explotabilidad práctica del desbordamiento de montículo contra sistemas operativos modernos."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "HDFGroup",
          "product": "hdf5",
          "versions": [
            {
              "version": "<= 1.14.1-2",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-14T14:50:10.348494Z",
          "id": "CVE-2026-29043",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:hdfgroup:hdf5:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "1.14.1-2",
              "matchCriteriaId": "B31207D0-FC14-4CA5-89E2-F4223AD53DD5"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/HDFGroup/hdf5/security/advisories/GHSA-qm2m-5g5w-2277",
      "source": "[email protected]",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ]
    }
  ]
}