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CVE-2020-27631

Estado: ModificadaCrítica (9.8)—

In Oryx CycloneTCP 1.9.6, TCP ISNs are improperly random.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2020-27631",
  "cveTags": [],
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-09-19T15:28:00.321391Z"
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    "cvssMetricV31": [
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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          "privilegesRequired": "NONE",
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  "affected": [
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      "affectedData": [
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  "published": "2023-10-10T17:15:10.453",
  "references": [
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      "tags": [
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      "source": "cve@mitre.org"
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      "url": "https://www.forescout.com/resources/numberjack-weak-isn-generation-in-embedded-tcpip-stacks/",
      "tags": [
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      "source": "cve@mitre.org"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "value": "CWE-330"
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    {
      "lang": "en",
      "value": "In Oryx CycloneTCP 1.9.6, TCP ISNs are improperly random."
    },
    {
      "lang": "es",
      "value": "En Oryx CycloneTCP 1.9.6, los ISN de TCP son incorrectamente aleatorios."
    }
  ],
  "lastModified": "2026-06-17T03:09:23.880",
  "configurations": [
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          "negate": false,
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