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.
History

Fri, 21 Aug 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Tp-link
Tp-link dr3150 V1
Tp-link dr3220v-4g V1
Tp-link dr3650v-4g V1
Tp-link dr3650v V1
Tp-link er603wp-4g-outdoor V1
Tp-link er605 V2
Tp-link er605w V2
Tp-link er701-5g-outdoor V1
Tp-link er703wp-4g-outdoor V1
Tp-link er706w-4g V2
Tp-link er706w V1
Tp-link er706wp-4g V1
Tp-link er707-m2 V1
Tp-link er7206 V2
Tp-link er7212pc V2
Tp-link er8411 V1
Tp-link v1
Tp-link Systems Inc
Tp-link Systems Inc er7406 V1
Tp-link Systems Inc er7412-m2 V1
Vendors & Products Tp-link
Tp-link dr3150 V1
Tp-link dr3220v-4g V1
Tp-link dr3650v-4g V1
Tp-link dr3650v V1
Tp-link er603wp-4g-outdoor V1
Tp-link er605 V2
Tp-link er605w V2
Tp-link er701-5g-outdoor V1
Tp-link er703wp-4g-outdoor V1
Tp-link er706w-4g V2
Tp-link er706w V1
Tp-link er706wp-4g V1
Tp-link er707-m2 V1
Tp-link er7206 V2
Tp-link er7212pc V2
Tp-link er8411 V1
Tp-link v1
Tp-link Systems Inc
Tp-link Systems Inc er7406 V1
Tp-link Systems Inc er7412-m2 V1

Thu, 20 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 20 Aug 2026 19:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Unencrypted Credential Transmission in Omada Gateway Dynamic DNS Authentication in Omada Gateways
Weaknesses CWE-319
References
Metrics cvssV4_0

{'score': 6.3, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: TPLink

Published:

Updated: 2026-08-20T18:58:42.948Z

Reserved: 2026-08-12T23:34:21.158Z

Link: CVE-2026-19683

cve-icon Vulnrichment

Updated: 2026-08-20T18:58:38.308Z

cve-icon NVD

Status : Received

Published: 2026-08-20T19:16:51.303

Modified: 2026-08-20T19:16:51.303

Link: CVE-2026-19683

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-21T12:08:38Z