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CVE-2022-35218

Status: ModifiedMedium (5.5)—

The NHI card’s web service component has a heap-based buffer overflow vulnerability due to insufficient validation for packet origin parameter length. A LAN attacker with general user privilege can exploit this vulnerability to disrupt service.

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)

NHI — Health Insurance WEB Service Component

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2022-35218",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
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        "type": "Secondary",
        "source": "twcert@cert.org.tw",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "twcert@cert.org.tw",
      "affectedData": [
        {
          "vendor": "NHI",
          "product": "card’s web service component",
          "versions": [
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              "status": "affected",
              "version": "dae0509e5aabde2f110ce8418af67cf7"
            }
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          "platforms": [
            "Windows"
          ]
        }
      ]
    }
  ],
  "published": "2022-08-02T16:15:10.373",
  "references": [
    {
      "url": "https://www.twcert.org.tw/tw/cp-132-6354-1cf61-1.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "twcert@cert.org.tw"
    },
    {
      "url": "https://www.twcert.org.tw/tw/cp-132-6354-1cf61-1.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "twcert@cert.org.tw",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
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      "lang": "en",
      "value": "The NHI card’s web service component has a heap-based buffer overflow vulnerability due to insufficient validation for packet origin parameter length. A LAN attacker with general user privilege can exploit this vulnerability to disrupt service."
    },
    {
      "lang": "es",
      "value": "El componente de servicio web de la tarjeta NHI presenta una vulnerabilidad de desbordamiento de búfer en la región heap de la memoria debido a una comprobación insuficiente de la longitud del parámetro de origen del paquete. Un atacante de la LAN con privilegios de usuario generales puede explotar esta vulnerabilidad para interrumpir el servicio"
    }
  ],
  "lastModified": "2026-06-17T04:51:34.777",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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            }
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  "sourceIdentifier": "twcert@cert.org.tw"
}