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CVE-2018-12679

Status: ModifiedHigh (7.5)—

The Serialize.deserialize() method in CoAPthon3 1.0 and 1.0.1 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, example collect CoAP server and client) when they receive crafted CoAP messages.

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)

Coapthon3 Project — Coapthon3

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-12679",
  "cveTags": [],
  "metrics": {
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      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "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,
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        "obtainUserPrivilege": false,
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
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  "affected": [
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      "affectedData": [
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          "versions": [
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  "published": "2019-04-02T19:29:00.260",
  "references": [
    {
      "url": "https://github.com/Tanganelli/CoAPthon3/issues/16",
      "tags": [
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        "Issue Tracking",
        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
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      "description": [
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          "lang": "en",
          "value": "CWE-502"
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      "lang": "en",
      "value": "The Serialize.deserialize() method in CoAPthon3 1.0 and 1.0.1 mishandles certain exceptions, leading to a denial of service in applications that use this library (e.g., the standard CoAP server, CoAP client, example collect CoAP server and client) when they receive crafted CoAP messages."
    },
    {
      "lang": "es",
      "value": "El método Serialize.deserialize() en CoAPthon 3.1.0 y 1.0.1 gestiona de manera incorrecta ciertas excepciones, conduciendo a una denegación de servicio (DoS) en aplicaciones que utilizan esta biblioteca (p. ej., el servidor CoAP estándar, el cliente CoAP, el servidor y cliente CoAP \"example collect\") cuando reciben mensajes CoAP manipulados."
    }
  ],
  "lastModified": "2026-06-17T01:38:10.030",
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