Unencrypted Credential Transmission in Omada Gateway Dynamic DNS Authentication in Omada Gateways

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-19683
StatePUBLISHED
AssignerTPLink
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-20 19:16:51 UTC
Updated2026-08-20 19:16:51 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v4.0 6.3 MEDIUM from f23511db-6c3e-4e32-a477-6aa17d310630

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

Problem Types: CWE-319 | CWE-319 CWE-319 Cleartext transmission of sensitive information

VersionSourceTypeScoreSeverityVector
4.0f23511db-6c3e-4e32-a477-6aa17d310630Secondary6.3MEDIUMCVSS: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/C...
4.0CNACVSS6.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA TP-Link Systems Inc. ER7212PC V2 affected 2.4.3 Build 20260722 Rel.40250 custom Not specified
CNA TP-Link Systems Inc. ER605 V2 affected 2.4.4 Build 20260630 Rel.14398 custom Not specified
CNA TP-Link Systems Inc. ER7206 V2 affected 2.3.5 Build 20260625 Rel.43136 custom Not specified
CNA TP-Link Systems Inc ER7406 V1 affected 1.3.4 Build 20260625 Rel.43136 custom Not specified
CNA TP-Link Systems Inc. ER707-M2 V1 affected 1.4.4 Build 20260625 Rel.43063 custom Not specified
CNA TP-Link Systems Inc ER7412-M2 V1 affected 1.2.0 Build 20260630 Rel.82947 custom Not specified
CNA TP-Link Systems Inc. ER8411 V1 affected 1.4.1 Build 20260708 Rel.64832 custom Not specified
CNA TP-Link Systems Inc. ER706W V1 affected 1.2.11 Build 20260723 Rel.41567 custom Not specified
CNA TP-Link Systems Inc. V1 affected 1.2.6 Build 20260723 Rel.41321 custom Not specified
CNA TP-Link Systems Inc. ER706W-4G V2 affected 2.1.11 Build 20260723 Rel.41624 custom Not specified
CNA TP-Link Systems Inc. ER706WP-4G V1 affected 1.1.11 Build 20260723 Rel.41624 custom Not specified
CNA TP-Link Systems Inc. ER703WP-4G-Outdoor V1 affected 1.1.7 Build 20260723 Rel.41712 custom Not specified
CNA TP-Link Systems Inc. DR3220v-4G V1 affected 1.2.0 Build 20260630 Rel.82652 custom Not specified
CNA TP-Link Systems Inc. DR3650v V1 affected 1.2.0 Build 20260630 Rel.83311 custom Not specified
CNA TP-Link Systems Inc. DR3650v-4G V1 affected 1.2.0 Build 20260630 Rel.83347 custom Not specified
CNA TP-Link Systems Inc. ER603WP-4G-Outdoor V1 affected 1.0.2 Build 20260723 Rel.43271 custom Not specified
CNA TP-Link Systems Inc. DR3150 V1 affected 1.0.1 Build 20260722 Rel.16854 custom Not specified
CNA TP-Link Systems Inc. ER701-5G-Outdoor V1 affected 1.0.3 Build 20260723 Rel.40931 custom Not specified
CNA TP-Link Systems Inc. ER605W V2 affected 2.0.4 Build 20260723 Rel.43763 custom Not specified

References

ReferenceSourceLinkTags
www.tp-link.com/us/support/faq/5256 f23511db-6c3e-4e32-a477-6aa17d310630 www.tp-link.com
www.omadanetworks.com/us/support/download f23511db-6c3e-4e32-a477-6aa17d310630 www.omadanetworks.com
www.omadanetworks.com/en/support/download f23511db-6c3e-4e32-a477-6aa17d310630 www.omadanetworks.com
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