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CVE-2025-43966

Estado: AnalizadaAlta (7.5)—

libheif before 1.19.6 has a NULL pointer dereference in ImageItem_iden in image-items/iden.cc.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vector CVSS AV:N/AC:L/PR:N implica explotación remota sin privilegios (T1190). NULL pointer dereference causa crash → DoS de aplicación (T1499.004). libheif es librería usada en procesamiento de imágenes remotas.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-43966",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-43966",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-21T02:11:29.585403Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "source": "cve@mitre.org",
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          "scope": "UNCHANGED",
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          "baseScore": 2.9,
          "attackVector": "LOCAL",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 1.4
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      {
        "type": "Primary",
        "source": "nvd@nist.gov",
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
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          "product": "libheif",
          "versions": [
            {
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              "version": "0",
              "lessThan": "1.19.6",
              "versionType": "semver"
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  ],
  "published": "2025-04-21T00:15:33.457",
  "references": [
    {
      "url": "https://github.com/strukturag/libheif/commit/b38555387e4b5dcf036fe45b0c440aca19b7b69c",
      "tags": [
        "Patch"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/strukturag/libheif/compare/v1.19.5...v1.19.6",
      "tags": [
        "Patch",
        "Release Notes"
      ],
      "source": "cve@mitre.org"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "type": "Secondary",
      "source": "cve@mitre.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
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    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "libheif before 1.19.6 has a NULL pointer dereference in ImageItem_iden in image-items/iden.cc."
    },
    {
      "lang": "es",
      "value": "Libheif antes de 1.19.6 tiene un puntero NULL Derferencia en ImageItem_iden en Image-Items/Iden.cc."
    }
  ],
  "lastModified": "2026-06-17T09:24:50.387",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:struktur:libheif:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "1.19.6"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}