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CVE-2006-4303

Status: ModifiedLow (2.6)—

Race condition in (1) libnsl and (2) TLI/XTI API routines in Sun Solaris 10 allows remote attackers to cause a denial of service ("tight loop" and CPU consumption for listener applications) via unknown vectors related to TCP fusion (do_tcp_fusion).

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 (1)

SUN — Solaris

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2006-4303",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.6,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:H/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "HIGH",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 4.9,
        "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": "2006-08-23T01:04:00.000",
  "references": [
    {
      "url": "http://securitytracker.com/id?1016706",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://sunsolve.sun.com/search/document.do?assetkey=1-26-102576-1",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/28420",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://securitytracker.com/id?1016706",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://sunsolve.sun.com/search/document.do?assetkey=1-26-102576-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/28420",
      "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": "Race condition in (1) libnsl and (2) TLI/XTI API routines in Sun Solaris 10 allows remote attackers to cause a denial of service (\"tight loop\" and CPU consumption for listener applications) via unknown vectors related to TCP fusion (do_tcp_fusion)."
    },
    {
      "lang": "es",
      "value": "Condición de carrera en rutinas de API (1) libnsl y (2) TLW/XTI en Sun Solaris 10 permite a atacantes remotos provocar una denegación de servicio (bucle cerrado y agotamiento de CPU para aplicaciones a la escucha) a través de vectores desconocidos relacionados con la fusión TCP (do_tcp_fusion)."
    }
  ],
  "lastModified": "2026-06-16T22:28:49.080",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:sun:solaris:10.0:*:sparc:*:*:*:*:*",
              "vulnerable": true,
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            }
          ],
          "operator": "OR"
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  ],
  "sourceIdentifier": "cve@mitre.org"
}