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CVE-2002-0109

Status: ModifiedMedium (6.4)—

Linksys EtherFast BEFN2PS4, BEFSR41, and BEFSR81 Routers, and possibly other products, allow remote attackers to gain sensitive information and cause a denial of service via an SNMP query for the default community string "public," which causes the router to change its configuration and send SNMP trap information back to the system that initiated the query.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (3)

Linksys — Befn2ps4Linksys — Befsr41Linksys — Befsr81

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2002-0109",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2002-03-25T05:00:00.000",
  "references": [
    {
      "url": "http://marc.info/?l=bugtraq&m=101039288111680&w=2",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.iss.net/security_center/static/7827.php",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/3795",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/3797",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://marc.info/?l=bugtraq&m=101039288111680&w=2",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.iss.net/security_center/static/7827.php",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/3795",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/3797",
      "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": "Linksys EtherFast BEFN2PS4, BEFSR41, and BEFSR81 Routers, and possibly other products, allow remote attackers to gain sensitive information and cause a denial of service via an SNMP query for the default community string \"public,\" which causes the router to change its configuration and send SNMP trap information back to the system that initiated the query."
    },
    {
      "lang": "es",
      "value": "Los routers Linksys EtherFast BEFN2PS4, BEFSR41, and BEFSR81, y posiblemente otros productos, permiten a atacantes remotos obterner información sensible y provocar una denegación de servicio mediante una consulta SNMP con la cadena de comunidad por defecto \"public,\" lo que provoca que el router cambie su configuración y envie información de trampa SNMP de vuelta al sistema que inició la consulta."
    }
  ],
  "lastModified": "2026-06-16T21:56:48.890",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:linksys:befn2ps4:0.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "42DB1FD4-FF20-4298-8426-E51741BFE981"
            },
            {
              "criteria": "cpe:2.3:h:linksys:befsr41:0.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A8D27E11-B802-433D-98A0-2A6F9C9CB5DC"
            },
            {
              "criteria": "cpe:2.3:h:linksys:befsr81:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AF867F97-F14F-4056-B0C8-A72E2FE2E74D"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}