FKIE_CVE-2025-7009

Vulnerability from fkie_nvd - Published: 2026-06-12 22:16 - Updated: 2026-09-30 20:10
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
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.
References
security@nortonlifelock.comhttps://www.gendigital.com/us/en/contact-us/security-advisories/
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "affected",
          "platforms": [
            "Windows",
            "macOS",
            "Linux"
          ],
          "product": "Avast Antivirus",
          "vendor": "Gen Digital",
          "versions": [
            {
              "lessThan": "25021310",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "platforms": [
            "Windows",
            "macOS",
            "Linux"
          ],
          "product": "AVG Antivirus",
          "vendor": "Gen Digital",
          "versions": [
            {
              "lessThan": "25021310",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "platforms": [
            "Windows",
            "macOS",
            "Linux"
          ],
          "product": "Norton Antivirus",
          "vendor": "Gen Digital",
          "versions": [
            {
              "lessThan": "25021310",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "platforms": [
            "Windows",
            "macOS",
            "Linux"
          ],
          "product": "Avast One",
          "vendor": "Gen Digital",
          "versions": [
            {
              "lessThan": "25021310",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "platforms": [
            "Windows",
            "macOS",
            "Linux"
          ],
          "product": "Avast Business Antivirus",
          "vendor": "Gen Digital",
          "versions": [
            {
              "lessThan": "25021310",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@nortonlifelock.com"
    }
  ],
  "cveTags": [],
  "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 l\u00edmites del b\u00fafer de pila en Avast Antivirus al escanear un archivo PE de Windows malformado puede permitir la Ejecuci\u00f3n Local de C\u00f3digo o la Denegaci\u00f3n 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 l\u00f3gica de escaneo afectada se entrega a trav\u00e9s de un flujo de actualizaci\u00f3n 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 mitigaci\u00f3n fluye a trav\u00e9s de este canal de actualizaci\u00f3n; las instalaciones en o por encima de la compilaci\u00f3n listada no son vulnerables independientemente de qu\u00e9 producto consuma el flujo."
    }
  ],
  "id": "CVE-2025-7009",
  "lastModified": "2026-09-30T20:10:00.247",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "security@nortonlifelock.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-7009",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-15T17:11:24.524045Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-12T22:16:48.943",
  "references": [
    {
      "source": "security@nortonlifelock.com",
      "url": "https://www.gendigital.com/us/en/contact-us/security-advisories/"
    }
  ],
  "sourceIdentifier": "security@nortonlifelock.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "security@nortonlifelock.com",
      "type": "Secondary"
    }
  ]
}



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Sightings

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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.