CVE-2002-1123

Estado: ModificadaAlta (7.5)—

Buffer overflow in the authentication function for Microsoft SQL Server 2000 and Microsoft Desktop Engine (MSDE) 2000 allows remote attackers to execute arbitrary code via a long request to TCP port 1433, aka the "Hello" overflow.

CVSS

Versión: 2.0
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Puntuación base: 7.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 78%
Percentil entre todas las CVEs puntuadas: 100
Fecha de la puntuación: 6/10/2026

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)

Microsoft — Data Engine Microsoft — SQL Server

CWE

NVD-CWE-Other

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2002-1123",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": true,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2002-09-24T04:00:00.000",
  "references": [
    {
      "url": "http://marc.info/?l=bugtraq&m=102873609025020&w=2",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://online.securityfocus.com/archive/1/286220",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ciac.org/ciac/bulletins/n-003.shtml",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.iss.net/security_center/static/9788.php",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/5411",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-056",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://marc.info/?l=bugtraq&m=102873609025020&w=2",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://online.securityfocus.com/archive/1/286220",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ciac.org/ciac/bulletins/n-003.shtml",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.iss.net/security_center/static/9788.php",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/5411",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-056",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Buffer overflow in the authentication function for Microsoft SQL Server 2000 and Microsoft Desktop Engine (MSDE) 2000 allows remote attackers to execute arbitrary code via a long request to TCP port 1433, aka the \"Hello\" overflow."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de búfer en Microsof SQL Server permite a atacantes remotos ejecutar código arbitrario mediante una petición larga al puerto TCP 1433, también conocido como desbordamiento \"Hello\"."
    }
  ],
  "lastModified": "2026-06-16T21:58:46.197",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:data_engine:2000:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "51ABD323-BF3F-4825-8788-8FCD614E83E4"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:sql_server:2000:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A5D559EE-727C-405C-987C-247973A84D32"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:sql_server:2000:sp1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4A74EBC1-FD61-4DD1-AC8A-E4B0F333A980"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:sql_server:2000:sp2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4BC2A389-68BF-45B1-833D-96B331844424"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}