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CVE-2018-13643

Status: ModifiedHigh (7.5)—

The mintToken function of a smart contract implementation for GCRTokenERC20, an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to any value.

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)

Gcrtokenerc20 Project — Gcrtokenerc20

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-13643",
  "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:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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    "cvssMetricV30": [
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        "cvssData": {
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          "baseSeverity": "HIGH",
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          "userInteraction": "NONE",
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          "confidentialityImpact": "NONE"
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  "affected": [
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  ],
  "published": "2018-07-09T06:29:09.527",
  "references": [
    {
      "url": "https://github.com/BlockChainsSecurity/EtherTokens/blob/master/GEMCHAIN/mint%20integer%20overflow.md",
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        "Third Party Advisory"
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      "tags": [
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        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
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  ],
  "descriptions": [
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      "lang": "en",
      "value": "The mintToken function of a smart contract implementation for GCRTokenERC20, an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to any value."
    },
    {
      "lang": "es",
      "value": "La función mintToken de una implementación de contrato inteligente para GCRTokenERC20, un token de Ethereum, tiene un desbordamiento de enteros que permite al propietario del contrato establecer cualquier valor para el balance de un usuario arbitrario."
    }
  ],
  "lastModified": "2026-06-17T01:39:50.517",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gcrtokenerc20_project:gcrtokenerc20:-:*:*:*:*:*:*:*",
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          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}