FKIE_CVE-2021-3125
Vulnerability from fkie_nvd - Published: 2021-04-12 19:15 - Updated: 2026-06-17 04:04
Severity
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
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 | - |
{
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"vendor": "n/a",
"versions": [
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"version": "n/a"
}
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}
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"source": "cve@mitre.org"
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"cveTags": [],
"descriptions": [
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"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": {
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"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",
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"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"
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"source": "nvd@nist.gov",
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"published": "2021-04-12T19:15:14.753",
"references": [
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"tags": [
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"value": "CWE-834"
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"source": "nvd@nist.gov",
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}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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