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CVE-2007-2846

Estado: ModificadaAlta (9.3)—

Heap-based buffer overflow in the SIS unpacker in avast! Anti-Virus Managed Client before 4.7.700 allows user-assisted remote attackers to execute arbitrary code via a crafted SIS archive, resulting from an "integer cast around."

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).

Tecnologías afectadas (2)

Avas!t — Avast! AntivirusAvast! — Avast! Antivirus

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2007-2846",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": true,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2007-05-24T18:30:00.000",
  "references": [
    {
      "url": "http://marc.info/?l=full-disclosure&m=118007660813710&w=2",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://osvdb.org/36522",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.avast.com/eng/adnm-management-client-revision-history.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.kb.cert.org/vuls/id/125868",
      "tags": [
        "US Government Resource"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.nruns.com/advisories/%5Bn.runs-SA-2007.009%5D%20-%20Avast%21%20Antivirus%20SIS%20parsing%20Arbitrary%20Code%20Execution%20Advisory.txt",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/469585/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/24155",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/1935",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/34501",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://marc.info/?l=full-disclosure&m=118007660813710&w=2",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://osvdb.org/36522",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.avast.com/eng/adnm-management-client-revision-history.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.kb.cert.org/vuls/id/125868",
      "tags": [
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.nruns.com/advisories/%5Bn.runs-SA-2007.009%5D%20-%20Avast%21%20Antivirus%20SIS%20parsing%20Arbitrary%20Code%20Execution%20Advisory.txt",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/469585/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/24155",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/1935",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/34501",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Heap-based buffer overflow in the SIS unpacker in avast! Anti-Virus Managed Client before 4.7.700 allows user-assisted remote attackers to execute arbitrary code via a crafted SIS archive, resulting from an \"integer cast around.\""
    },
    {
      "lang": "es",
      "value": "Un desbordamiento de búfer en la región heap de la memoria en el desempaquetador SIS en  Anti-Virus Managed Client de avast! anterior a versión 4.7.700, permite a los atacantes remotos asistidos por el usuario ejecutar código arbitrario por medio de un archivo SIS creado, como resultado de un \"integer cast around.\""
    }
  ],
  "lastModified": "2026-06-16T22:40:32.980",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:avas\\!t:avast\\!_antivirus:4.6.394:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "91D1DBA4-520A-4186-B61A-5BF86ADE3302"
            },
            {
              "criteria": "cpe:2.3:a:avast\\!:avast\\!_antivirus:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0173C2C9-C017-411E-AA55-01CF30D44869",
              "versionEndIncluding": "4.7.652"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}