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CVE-2025-43864

Estado: AplazadaAlta (7.5)—

React Router is a router for React. Starting in version 7.2.0 and prior to version 7.5.2, it is possible to force an application to switch to SPA mode by adding a header to the request. If the application uses SSR and is forced to switch to SPA, this causes an error that completely corrupts the page. If a cache system is in place, this allows the response containing the error to be cached, resulting in a cache poisoning that strongly impacts the availability of the application. This issue has been patched in version 7.5.2.

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.

AV:N/PR:N/UI:N indica red sin autenticación (T1190). El atacante injecta un header para forzar SPA y causar error; con caché activado, envena la respuesta, generando DoS persistente (T1499.004) y corrupción de datos cacheados (T1565.003).

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

Network SegmentationFilter Network TrafficVulnerability ScanningRestrict File and Directory PermissionsPrivileged Account ManagementLimit Access to Resource Over Network

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

React — React RouterAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-43864",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-43864",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-25T15:17:49.573437Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/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"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "remix-run",
          "product": "react-router",
          "versions": [
            {
              "status": "affected",
              "version": ">= 7.2.0, < 7.5.2"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-04-25T01:15:43.117",
  "references": [
    {
      "url": "https://github.com/remix-run/react-router/blob/e6c53a0130559b4a9bd47f9cf76ea5b08a69868a/packages/react-router/lib/server-runtime/server.ts#L407",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/remix-run/react-router/commit/c84302972a152d851cf5dd859ff332b354b70111",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/remix-run/react-router/security/advisories/GHSA-f46r-rw29-r322",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-755"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "React Router is a router for React. Starting in version 7.2.0 and prior to version 7.5.2, it is possible to force an application to switch to SPA mode by adding a header to the request. If the application uses SSR and is forced to switch to SPA, this causes an error that completely corrupts the page. If a cache system is in place, this allows the response containing the error to be cached, resulting in a cache poisoning that strongly impacts the availability of the application. This issue has been patched in version 7.5.2."
    },
    {
      "lang": "es",
      "value": "React Router es un enrutador para React. A partir de la versión 7.2.0 y anteriores a la 7.5.2, es posible forzar el cambio a modo SPA en una aplicación añadiendo un encabezado a la solicitud. Si la aplicación usa SSR y se ve obligada a cambiar a modo SPA, se produce un error que corrompe completamente la página. Si existe un sistema de caché, la respuesta con el error se almacena en caché, lo que provoca un envenenamiento de caché que afecta gravemente la disponibilidad de la aplicación. Este problema se ha corregido en la versión 7.5.2."
    }
  ],
  "lastModified": "2026-06-17T09:24:40.123",
  "sourceIdentifier": "security-advisories@github.com"
}