CVE-2026-19683 (GCVE-0-2026-19683)
Vulnerability from cvelistv5
Published
2026-08-20 18:32
Modified
2026-08-20 18:58
CWE
  • CWE-319 - Cleartext transmission of sensitive information
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.
Impacted products
Vendor Product Version
TP-Link Systems Inc. ER7212PC v2 Version: 0   < 2.4.3 Build 20260722 Rel.40250
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   TP-Link Systems Inc. ER605 v2 Version: 0   < 2.4.4 Build 20260630 Rel.14398
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   TP-Link Systems Inc. ER7206 v2 Version: 0   < 2.3.5 Build 20260625 Rel.43136
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   TP-Link Systems Inc ER7406 v1 Version: 0   < 1.3.4 Build 20260625 Rel.43136
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   TP-Link Systems Inc. ER707-M2 v1 Version: 0   < 1.4.4 Build 20260625 Rel.43063
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   TP-Link Systems Inc ER7412-M2 v1 Version: 0   < 1.2.0 Build 20260630 Rel.82947
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   TP-Link Systems Inc. ER8411 v1 Version: 0   < 1.4.1 Build 20260708 Rel.64832
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   TP-Link Systems Inc. ER706W v1 Version: 0   < 1.2.11 Build 20260723 Rel.41567
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   TP-Link Systems Inc. v1 Version: 0   < 1.2.6 Build 20260723 Rel.41321
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   TP-Link Systems Inc. ER706W-4G v2 Version: 0   < 2.1.11 Build 20260723 Rel.41624
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   TP-Link Systems Inc. ER706WP-4G v1 Version: 0   < 1.1.11 Build 20260723 Rel.41624
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   TP-Link Systems Inc. ER703WP-4G-Outdoor v1 Version: 0   < 1.1.7 Build 20260723 Rel.41712
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   TP-Link Systems Inc. DR3220v-4G v1 Version: 0   < 1.2.0 Build 20260630 Rel.82652
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   TP-Link Systems Inc. DR3650v v1 Version: 0   < 1.2.0 Build 20260630 Rel.83311
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   TP-Link Systems Inc. DR3650v-4G v1 Version: 0   < 1.2.0 Build 20260630 Rel.83347
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   TP-Link Systems Inc. ER603WP-4G-Outdoor v1 Version: 0   < 1.0.2 Build 20260723 Rel.43271
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   TP-Link Systems Inc. DR3150 v1 Version: 0   < 1.0.1 Build 20260722 Rel.16854
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   TP-Link Systems Inc. ER701-5G-Outdoor v1 Version: 0   < 1.0.3 Build 20260723 Rel.40931
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   TP-Link Systems Inc. ER605W v2 Version: 0   < 2.0.4 Build 20260723 Rel.43763
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Show details on NVD website


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During communication with a third-party DDNS service, authentication credentials are transmitted over an unencrypted channel. An attacker who can\u0026nbsp;observe\u0026nbsp;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.\u0026nbsp;\u003c/p\u003e\u003c/div\u003e\u003cdiv\u003e\u003cp\u003eSuccessful 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.\u003c/p\u003e\u003c/div\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-319\", \"description\": \"CWE-319 Cleartext transmission of sensitive information\"}]}], \"providerMetadata\": {\"orgId\": \"f23511db-6c3e-4e32-a477-6aa17d310630\", \"shortName\": \"TPLink\", \"dateUpdated\": \"2026-08-20T18:32:27.650Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-19683\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-20T18:58:42.948Z\", \"dateReserved\": \"2026-08-12T23:34:21.158Z\", \"assignerOrgId\": \"f23511db-6c3e-4e32-a477-6aa17d310630\", \"datePublished\": \"2026-08-20T18:32:27.650Z\", \"assignerShortName\": \"TPLink\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


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