FKIE_CVE-2026-19683
Vulnerability from fkie_nvd - Published: 2026-08-20 19:16 - Updated: 2026-08-28 19:02
Severity
Summary
A vulnerability exists in the Dynamic DNS (DDNS) functionality of TP-Link Omada Gateways. During communication with a third-party DDNS service, authentication credentials are transmitted over an unencrypted channel. An attacker who can observe or manipulate traffic between an affected device and the DDNS service may obtain sensitive authentication information or interfere with DDNS update operations. Exploitation requires DDNS to be configured, communication with an external DDNS service, and attacker visibility or control of the relevant network path.
Successful exploitation may result in disclosure of DDNS account credentials, unauthorized access to DDNS management functionality, or modification of DNS records associated with the affected deployment.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "ER7212PC v2",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "2.4.3 Build 20260722 Rel.40250",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "ER605 v2",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "2.4.4 Build 20260630 Rel.14398",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "ER7206 v2",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "2.3.5 Build 20260625 Rel.43136",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "ER7406 v1",
"vendor": "TP-Link Systems Inc",
"versions": [
{
"lessThan": "1.3.4 Build 20260625 Rel.43136",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "ER707-M2 v1",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.4.4 Build 20260625 Rel.43063",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "ER7412-M2 v1",
"vendor": "TP-Link Systems Inc",
"versions": [
{
"lessThan": "1.2.0 Build 20260630 Rel.82947",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "ER8411 v1",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.4.1 Build 20260708 Rel.64832",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "ER706W v1",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.2.11 Build 20260723 Rel.41567",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "v1",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.2.6 Build 20260723 Rel.41321",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "ER706W-4G v2",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "2.1.11 Build 20260723 Rel.41624",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "ER706WP-4G v1",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.1.11 Build 20260723 Rel.41624",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "ER703WP-4G-Outdoor v1",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.1.7 Build 20260723 Rel.41712",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "DR3220v-4G v1",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.2.0 Build 20260630 Rel.82652",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "DR3650v v1",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.2.0 Build 20260630 Rel.83311",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "DR3650v-4G v1",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.2.0 Build 20260630 Rel.83347",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "ER603WP-4G-Outdoor v1",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.0.2 Build 20260723 Rel.43271",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "DR3150 v1",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.0.1 Build 20260722 Rel.16854",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "ER701-5G-Outdoor v1",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.0.3 Build 20260723 Rel.40931",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "ER605W v2",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "2.0.4 Build 20260723 Rel.43763",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"source": "f23511db-6c3e-4e32-a477-6aa17d310630"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability exists in the Dynamic DNS (DDNS) functionality of TP-Link Omada Gateways. During communication with a third-party DDNS service, authentication credentials are transmitted over an unencrypted channel. An attacker who can\u00a0observe\u00a0or manipulate traffic between an affected device and the DDNS service may obtain sensitive authentication information or interfere with DDNS update operations. Exploitation requires DDNS to be configured, communication with an external DDNS service, and attacker visibility or control of the relevant network path.\u00a0\n\n\n\n\n\nSuccessful exploitation may result in disclosure of DDNS account credentials, unauthorized access to DDNS management functionality, or modification of DNS records associated with the affected deployment."
}
],
"id": "CVE-2026-19683",
"lastModified": "2026-08-28T19:02:53.760",
"metrics": {
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "f23511db-6c3e-4e32-a477-6aa17d310630",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-19683",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-20T18:55:44.295305Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-08-20T19:16:51.303",
"references": [
{
"source": "f23511db-6c3e-4e32-a477-6aa17d310630",
"url": "https://www.omadanetworks.com/en/support/download/"
},
{
"source": "f23511db-6c3e-4e32-a477-6aa17d310630",
"url": "https://www.omadanetworks.com/us/support/download/"
},
{
"source": "f23511db-6c3e-4e32-a477-6aa17d310630",
"url": "https://www.tp-link.com/us/support/faq/5256/"
}
],
"sourceIdentifier": "f23511db-6c3e-4e32-a477-6aa17d310630",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-319"
}
],
"source": "f23511db-6c3e-4e32-a477-6aa17d310630",
"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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.
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.
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