CVE-2026-19683
TP-Link · published 2026-08-20
Source record Collected from the National Vulnerability Database (NVD)
Description
Description by TPLink via the CVE Program.
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.
Status at the source
- NVD status: Analyzed
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| TP-Link Systems Inc. | ER7212PC v2 | 0 – before 2.4.3 Build 20260722 Rel.40250: affected |
| TP-Link Systems Inc. | ER605 v2 | 0 – before 2.4.4 Build 20260630 Rel.14398: affected |
| TP-Link Systems Inc. | ER7206 v2 | 0 – before 2.3.5 Build 20260625 Rel.43136: affected |
| TP-Link Systems Inc | ER7406 v1 | 0 – before 1.3.4 Build 20260625 Rel.43136: affected |
| TP-Link Systems Inc. | ER707-M2 v1 | 0 – before 1.4.4 Build 20260625 Rel.43063: affected |
| TP-Link Systems Inc | ER7412-M2 v1 | 0 – before 1.2.0 Build 20260630 Rel.82947: affected |
| TP-Link Systems Inc. | ER8411 v1 | 0 – before 1.4.1 Build 20260708 Rel.64832: affected |
| TP-Link Systems Inc. | ER706W v1 | 0 – before 1.2.11 Build 20260723 Rel.41567: affected |
| TP-Link Systems Inc. | v1 | 0 – before 1.2.6 Build 20260723 Rel.41321: affected |
| TP-Link Systems Inc. | ER706W-4G v2 | 0 – before 2.1.11 Build 20260723 Rel.41624: affected |
| TP-Link Systems Inc. | ER706WP-4G v1 | 0 – before 1.1.11 Build 20260723 Rel.41624: affected |
| TP-Link Systems Inc. | ER703WP-4G-Outdoor v1 | 0 – before 1.1.7 Build 20260723 Rel.41712: affected |
| TP-Link Systems Inc. | DR3220v-4G v1 | 0 – before 1.2.0 Build 20260630 Rel.82652: affected |
| TP-Link Systems Inc. | DR3650v v1 | 0 – before 1.2.0 Build 20260630 Rel.83311: affected |
| TP-Link Systems Inc. | DR3650v-4G v1 | 0 – before 1.2.0 Build 20260630 Rel.83347: affected |
| TP-Link Systems Inc. | ER603WP-4G-Outdoor v1 | 0 – before 1.0.2 Build 20260723 Rel.43271: affected |
| TP-Link Systems Inc. | DR3150 v1 | 0 – before 1.0.1 Build 20260722 Rel.16854: affected |
| TP-Link Systems Inc. | ER701-5G-Outdoor v1 | 0 – before 1.0.3 Build 20260723 Rel.40931: affected |
| TP-Link Systems Inc. | ER605W v2 | 0 – before 2.0.4 Build 20260723 Rel.43763: affected |
Products named in NVD's CPE match criteria (18)
cpe:2.3:o:tp-link:er7212pc_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:er605_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:er7206_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:er7406_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:er707-m2_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:er7412-m2_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:er8411_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:er706w_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:er706w-4g_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:er706wp-4g_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:er703wp-4g-outdoor_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:dr3220v-4g_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:dr3650v_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:dr3650v-4g_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:er603wp-4g-outdoor_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:dr3150_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:er701-5g-outdoor_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:tp-link:er605w_firmware:*:*:*:*:*:*:*:*
DeSpy has not checked any unit, hardware revision or firmware. A product missing here is not a statement that it is unaffected.
Scores, as their sources published them
- CVSS 4.0: 6.3 MEDIUM — as published by TPLink (Secondary)
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 - CVSS 3.1: 7.4 HIGH — as published by NIST (Primary)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - SSVC — CISA's assessment (SSVC 2.0.3, CISA Coordinator): Exploitation: none · Automatable: no · Technical impact: partial
DeSpy does not score records. These are the sources' own values.
Weaknesses
Sources
References the source lists
- https://www.omadanetworks.com/en/support/download/
- https://www.omadanetworks.com/us/support/download/
- https://www.tp-link.com/us/support/faq/5256/
Source dates: published 2026-08-20, last changed 2026-09-08. DeSpy's copy of this version is dated 2026-09-28.
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