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CVE-2025-7009

Estado: AplazadaAlta (7.8)—

Heap buffer out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed Windows PE file may allow Local Execution of Code or Denial-of-Service of the antivirus process.

This issue affects Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One, and Avast Business Antivirus on Windows, macOS, and Linux for virus definition builds before VPS 25021310.

The affected scanning logic is delivered through a shared Gen Digital virus definition update stream. The same stream feeds the consumer antivirus products listed in this advisory and other Gen Digital products that embed the same engine. Mitigation flows through this update channel; installations at or above the listed build are not vulnerable regardless of which product consumes the stream.

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:L/UI:R indica explotación en cliente (T1203): abrir un fichero PE malformado. Impactos: ejecución de código en el proceso antivirus (T1059) y DoS del servicio (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 (5)

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

Avast — AntivirusAIAvast — Business AntivirusAIAvast — ONEAIAVG — AntivirusAINorton — AntivirusAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-7009",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-7009",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-15T17:11:24.524045Z"
        }
      }
    ],
    "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": "Avast Antivirus",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "25021310",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "Windows",
            "macOS",
            "Linux"
          ],
          "defaultStatus": "affected"
        },
        {
          "vendor": "Gen Digital",
          "product": "AVG Antivirus",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "25021310",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "Windows",
            "macOS",
            "Linux"
          ],
          "defaultStatus": "affected"
        },
        {
          "vendor": "Gen Digital",
          "product": "Norton Antivirus",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "25021310",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "Windows",
            "macOS",
            "Linux"
          ],
          "defaultStatus": "affected"
        },
        {
          "vendor": "Gen Digital",
          "product": "Avast One",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "25021310",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "Windows",
            "macOS",
            "Linux"
          ],
          "defaultStatus": "affected"
        },
        {
          "vendor": "Gen Digital",
          "product": "Avast Business Antivirus",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "25021310",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "Windows",
            "macOS",
            "Linux"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-06-12T22:16:48.943",
  "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-125"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Heap buffer out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed Windows PE file may allow Local Execution of Code or Denial-of-Service of the antivirus process.\n\nThis issue affects Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One, and Avast Business Antivirus on Windows, macOS, and Linux for virus definition builds before VPS 25021310.\n\n\n\nThe affected scanning logic is delivered through a shared Gen Digital virus definition update stream. The same stream feeds the consumer antivirus products listed in this advisory and other Gen Digital products that embed the same engine. Mitigation flows through this update channel; installations at or above the listed build are not vulnerable regardless of which product consumes the stream."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de lectura fuera de límites del búfer de pila en Avast Antivirus al escanear un archivo PE de Windows malformado puede permitir la Ejecución Local de Código o la Denegación de Servicio del proceso del antivirus.\n\nEste problema afecta a Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One y Avast Business Antivirus en Windows, macOS y Linux para compilaciones de definiciones de virus anteriores a VPS 25021310.\n\nLa lógica de escaneo afectada se entrega a través de un flujo de actualización de definiciones de virus compartido de Gen Digital. El mismo flujo alimenta a los productos antivirus de consumo listados en este aviso y a otros productos de Gen Digital que incorporan el mismo motor. La mitigación fluye a través de este canal de actualización; las instalaciones en o por encima de la compilación listada no son vulnerables independientemente de qué producto consuma el flujo."
    }
  ],
  "lastModified": "2026-09-30T20:10:00.247",
  "sourceIdentifier": "security@nortonlifelock.com"
}