FKIE_CVE-2021-3125

Vulnerability from fkie_nvd - Published: 2021-04-12 19:15 - Updated: 2026-06-17 04:04
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
cve@mitre.orghttps://service.tp-link.com.cn/detail_download_8719.htmlVendor Advisory
cve@mitre.orghttps://service.tp-link.com.cn/detail_download_8720.htmlVendor Advisory
cve@mitre.orghttps://service.tp-link.com.cn/detail_download_8722.htmlVendor Advisory
cve@mitre.orghttps://service.tp-link.com.cn/detail_download_8723.htmlVendor Advisory
cve@mitre.orghttps://service.tp-link.com.cn/detail_download_8724.htmlVendor Advisory
cve@mitre.orghttps://service.tp-link.com.cn/detail_download_8725.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://service.tp-link.com.cn/detail_download_8719.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://service.tp-link.com.cn/detail_download_8720.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://service.tp-link.com.cn/detail_download_8722.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://service.tp-link.com.cn/detail_download_8723.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://service.tp-link.com.cn/detail_download_8724.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://service.tp-link.com.cn/detail_download_8725.htmlVendor Advisory
Impacted products
Vendor Product Version
tp-link tl-xdr3230_firmware *
tp-link tl-xdr3230 -
tp-link tl-xdr5430_firmware *
tp-link tl-xdr5430 -
tp-link tl-xdr3250_firmware *
tp-link tl-xdr3250 -
tp-link tl-xdr1860_firmware *
tp-link tl-xdr1860 -
tp-link tl-xdr1850_firmware *
tp-link tl-xdr1850 -
tp-link tl-xdr6060_firmware *
tp-link tl-xdr6060 -
To clipboard 

{
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          "vendor": "n/a",
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              "status": "affected",
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      "source": "cve@mitre.org"
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In TP-Link TL-XDR3230 \u003c 1.0.12, TL-XDR1850 \u003c 1.0.9, TL-XDR1860 \u003c 1.0.14, TL-XDR3250 \u003c 1.0.2, TL-XDR6060 Turbo \u003c 1.1.8, TL-XDR5430 \u003c 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\u0027s 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."
    },
    {
      "lang": "es",
      "value": "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 tr\u00e1fico 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 direcci\u00f3n IPv6 de destino pertenece al prefijo y no es una direcci\u00f3n IPv6 local, y un anuncio de enrutador es recibido con al menos un prefijo IPv6 \u00fanico global para el cual el flag on-link se establece"
    }
  ],
  "id": "CVE-2021-3125",
  "lastModified": "2026-06-17T04:04:42.600",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-04-12T19:15:14.753",
  "references": [
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      "tags": [
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      ],
      "url": "https://service.tp-link.com.cn/detail_download_8719.html"
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
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          "lang": "en",
          "value": "CWE-834"
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      "source": "nvd@nist.gov",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.