« Back to list

CVE-2001-1194

Status: ModifiedMedium (5)—

Zyxel Prestige 681 and 1600 SDSL Routers allow remote attackers to cause a denial of service via malformed packets with (1) an IP length less than actual packet size, or (2) fragmented packets whose size exceeds 64 kilobytes after reassembly.

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 (2)

Zyxel — Prestige 1600Zyxel — Prestige 681

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2001-1194",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "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": "2001-12-14T05:00:00.000",
  "references": [
    {
      "url": "http://archives.neohapsis.com/archives/bugtraq/2001-12/0140.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://archives.neohapsis.com/archives/bugtraq/2001-12/0190.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/3695",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/7704",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://archives.neohapsis.com/archives/bugtraq/2001-12/0140.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://archives.neohapsis.com/archives/bugtraq/2001-12/0190.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/3695",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/7704",
      "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": "Zyxel Prestige 681 and 1600 SDSL Routers allow remote attackers to cause a denial of service via malformed packets with (1) an IP length less than actual packet size, or (2) fragmented packets whose size exceeds 64 kilobytes after reassembly."
    },
    {
      "lang": "es",
      "value": "Zyxel Prestige 681 y 1600 SDSL Routers permite a atacantes remotos causar una Denegación de Servicio (DoS) mediante la malformación de paquetes con:1: una longitud de IP menor que el tamaño real de los paquetes, 2: paquetes fragmentados cuyo tamaño excede los 64 kilobytes después haber sido reensamblados."
    }
  ],
  "lastModified": "2026-06-16T21:55:47.227",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:zyxel:prestige_1600:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "97BCA6B1-0BD5-4211-ADAB-5DD40A2DC302"
            },
            {
              "criteria": "cpe:2.3:h:zyxel:prestige_681:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DB416117-3C35-4B3F-A366-CDE49A5BC579"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}