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CVE-2025-45143

Estado: AnalizadaAlta (7)—

string-math v1.2.2 was discovered to contain a Regex Denial of Service (ReDoS) which is exploited via a crafted input.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ReDoS en biblioteca npm expuesta en red (AV:N, AC:H) permite DoS por degradación de servicio. UI:N y PR:N confirman T1190. Impacto primario T1499.004 (application exhaustion) por consumo de CPU; I:L y A:L sugieren posible manipulación de respuesta secundaria.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-45143",
  "cveTags": [],
  "metrics": {
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      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "id": "CVE-2025-45143",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-06-30T18:48:04.360857Z"
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          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 4.7,
        "exploitabilityScore": 2.2
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  "affected": [
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      "affectedData": [
        {
          "vendor": "n/a",
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          "versions": [
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  "published": "2025-06-30T17:15:32.127",
  "references": [
    {
      "url": "https://gist.github.com/6en6ar/361608bccedb808061359481fe2f1b39",
      "tags": [
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      "source": "cve@mitre.org"
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      "url": "https://github.com/devrafalko/string-math/blob/master/string-math.js",
      "tags": [
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      "url": "https://www.npmjs.com/package/string-math%2C",
      "tags": [
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  "descriptions": [
    {
      "lang": "en",
      "value": "string-math v1.2.2 was discovered to contain a Regex Denial of Service (ReDoS) which is exploited via a crafted input."
    },
    {
      "lang": "es",
      "value": "Se descubrió que string-math v1.2.2 contiene una denegación de servicio de expresiones regulares (ReDoS) que se explota a través de una entrada manipulada."
    }
  ],
  "lastModified": "2026-06-17T09:25:23.693",
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