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CVE-2025-14098

Estado: AplazadaAlta (7.8)—

Heap buffer out-of-bounds write vulnerability due to integer overflow in Avira Antivirus engine when scanning a malformed MS-DOS executable file may allow Local Execution of Code or Denial-of-Service of the antivirus engine process.

This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.104.

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.

AV:L + UI:R → T1203 (ejecutar archivo malformado preparado). Impactos: code execution (T1059) por buffer overflow, DoS del motor antivirus (T1499.004).

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

Restrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationFilter Network TrafficExecution PreventionBehavior Prevention on Endpoint

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Avira — AntivirusAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-14098",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-14098",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-15T18:03:26.952634Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@nortonlifelock.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@nortonlifelock.com",
      "affectedData": [
        {
          "vendor": "Gen Digital",
          "product": "Avira Antivirus",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "8.3.70.104",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "Windows",
            "macOS",
            "Linux"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-06-12T23:16:27.350",
  "references": [
    {
      "url": "https://www.gendigital.com/us/en/contact-us/security-advisories/",
      "source": "security@nortonlifelock.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@nortonlifelock.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        },
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Heap buffer out-of-bounds write vulnerability due to integer overflow in Avira Antivirus engine when scanning a malformed MS-DOS executable file may allow Local Execution of Code or Denial-of-Service of the antivirus engine process.\n\nThis issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.104."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de escritura fuera de límites del búfer de montón debido a desbordamiento de entero en el motor de Avira Antivirus al escanear un archivo ejecutable de MS-DOS malformado puede permitir la Ejecución Local de Código o la Denegación de Servicio del proceso del motor del antivirus.\n\nEste problema afecta a Avira Antivirus en Windows, macOS y Linux para compilaciones de motor anteriores a 8.3.70.104."
    }
  ],
  "lastModified": "2026-07-23T09:10:00.113",
  "sourceIdentifier": "security@nortonlifelock.com"
}