Vulnerability · Published Aug 20, 2026 · Assigned by TPLink
CVE-2026-19683Unencrypted Credential Transmission in Omada Gateway Dynamic DNS Authentication in Omada Gateways
Medium 6.3
In plain English
A medium-severity security flaw in DR3150 v1 from TP-Link Systems Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| TP-Link Systems Inc. | ER7212PC v2 | 0 – before 2.4.3 Build 20260722 Rel.40250 |
| TP-Link Systems Inc. | ER605 v2 | 0 – before 2.4.4 Build 20260630 Rel.14398 |
| TP-Link Systems Inc. | ER7206 v2 | 0 – before 2.3.5 Build 20260625 Rel.43136 |
| TP-Link Systems Inc | ER7406 v1 | 0 – before 1.3.4 Build 20260625 Rel.43136 |
| TP-Link Systems Inc. | ER707-M2 v1 | 0 – before 1.4.4 Build 20260625 Rel.43063 |
| TP-Link Systems Inc | ER7412-M2 v1 | 0 – before 1.2.0 Build 20260630 Rel.82947 |
| TP-Link Systems Inc. | ER8411 v1 | 0 – before 1.4.1 Build 20260708 Rel.64832 |
| TP-Link Systems Inc. | ER706W v1 | 0 – before 1.2.11 Build 20260723 Rel.41567 |
| TP-Link Systems Inc. | v1 | 0 – before 1.2.6 Build 20260723 Rel.41321 |
| TP-Link Systems Inc. | ER706W-4G v2 | 0 – before 2.1.11 Build 20260723 Rel.41624 |
| TP-Link Systems Inc. | ER706WP-4G v1 | 0 – before 1.1.11 Build 20260723 Rel.41624 |
| TP-Link Systems Inc. | ER703WP-4G-Outdoor v1 | 0 – before 1.1.7 Build 20260723 Rel.41712 |
| TP-Link Systems Inc. | DR3220v-4G v1 | 0 – before 1.2.0 Build 20260630 Rel.82652 |
| TP-Link Systems Inc. | DR3650v v1 | 0 – before 1.2.0 Build 20260630 Rel.83311 |
| TP-Link Systems Inc. | DR3650v-4G v1 | 0 – before 1.2.0 Build 20260630 Rel.83347 |
| TP-Link Systems Inc. | ER603WP-4G-Outdoor v1 | 0 – before 1.0.2 Build 20260723 Rel.43271 |
| TP-Link Systems Inc. | DR3150 v1 | 0 – before 1.0.1 Build 20260722 Rel.16854 |
| TP-Link Systems Inc. | ER701-5G-Outdoor v1 | 0 – before 1.0.3 Build 20260723 Rel.40931 |
| TP-Link Systems Inc. | ER605W v2 | 0 – before 2.0.4 Build 20260723 Rel.43763 |
Weakness: CWE-319 · 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