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CVE-2021-3125

Estado: ModificadaAlta (7.5)—

En TP-Link TL-XDR3230 versiones anteriores a 1.0.12, TL-XDR1850 versiones anteriores a 1.0.9, TL-XDR1860 versiones anteriores a 1.0.14, TL-XDR3250 versiones anteriores a 1.0.2, TL-XDR6060 Turbo versiones anteriores a 1.1.8, TL-XDR5430 versiones anteriores a 1.0 .11, y posiblemente otros, cuando se utiliza IPv6, puede producirse un bucle de enrutamiento que genere un tráfico de red excesivo entre un dispositivo afectado y el enrutador de su ISP aguas arriba. Esto ocurre cuando una ruta de prefijo de enlace apunta a un enlace punto a punto, una dirección IPv6 de destino pertenece al prefijo y no es una dirección IPv6 local, y un anuncio de enrutador es recibido con al menos un prefijo IPv6 único global para el cual el flag on-link se establece

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 (6)

Tp-link — Tl-xdr1850 FirmwareTp-link — Tl-xdr1860 FirmwareTp-link — Tl-xdr3230 FirmwareTp-link — Tl-xdr3250 FirmwareTp-link — Tl-xdr5430 FirmwareTp-link — Tl-xdr6060 Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2021-3125",
  "cveTags": [],
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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          "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",
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        "impactScore": 3.6,
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  "published": "2021-04-12T19:15:14.753",
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      "value": "In TP-Link TL-XDR3230 < 1.0.12, TL-XDR1850 < 1.0.9, TL-XDR1860 < 1.0.14, TL-XDR3250 < 1.0.2, TL-XDR6060 Turbo < 1.1.8, TL-XDR5430 < 1.0.11, and possibly others, when IPv6 is used, a routing loop can occur that generates excessive network traffic between an affected device and its upstream ISP's router. This occurs when a link prefix route points to a point-to-point link, a destination IPv6 address belongs to the prefix and is not a local IPv6 address, and a router advertisement is received with at least one global unique IPv6 prefix for which the on-link flag is set."
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  "lastModified": "2026-06-17T04:04:42.600",
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