CVE-2026-19683
Unencrypted Credential Transmission in Omada Gateway Dynamic DNS Authentication in Omada Gateways
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.
INFO
Published Date :
Aug. 20, 2026, 7:16 p.m.
Last Modified :
Aug. 20, 2026, 7:16 p.m.
Remotely Exploit :
Yes !
Source :
f23511db-6c3e-4e32-a477-6aa17d310630
Affected Products
The following products are affected by CVE-2026-19683
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | MEDIUM | f23511db-6c3e-4e32-a477-6aa17d310630 | ||||
| CVSS 4.0 | MEDIUM | f23511db-6c3e-4e32-a477-6aa17d310630 |
Solution
- Ensure DDNS uses encrypted protocols.
- Verify DDNS configurations for security.
- Update affected gateway firmware.
- Monitor network traffic for suspicious activity.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-19683.
| URL | Resource |
|---|---|
| https://www.omadanetworks.com/en/support/download/ | |
| https://www.omadanetworks.com/us/support/download/ | |
| https://www.tp-link.com/us/support/faq/5256/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-19683 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-19683
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-19683 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-19683 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by f23511db-6c3e-4e32-a477-6aa17d310630
Aug. 20, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'TP-Link Systems Inc.', 'product': 'ER7212PC v2', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.4.3 Build 20260722 Rel.40250', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'ER605 v2', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.4.4 Build 20260630 Rel.14398', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'ER7206 v2', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.3.5 Build 20260625 Rel.43136', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc', 'product': 'ER7406 v1', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.3.4 Build 20260625 Rel.43136', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'ER707-M2 v1', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.4.4 Build 20260625 Rel.43063', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc', 'product': 'ER7412-M2 v1', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.2.0 Build 20260630 Rel.82947', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'ER8411 v1', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.4.1 Build 20260708 Rel.64832', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'ER706W v1', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.2.11 Build 20260723 Rel.41567', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'v1', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.2.6 Build 20260723 Rel.41321', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'ER706W-4G v2', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.1.11 Build 20260723 Rel.41624', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'ER706WP-4G v1', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.1.11 Build 20260723 Rel.41624', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'ER703WP-4G-Outdoor v1', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.1.7 Build 20260723 Rel.41712', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'DR3220v-4G v1', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.2.0 Build 20260630 Rel.82652', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'DR3650v v1', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.2.0 Build 20260630 Rel.83311', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'DR3650v-4G v1', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.2.0 Build 20260630 Rel.83347', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'ER603WP-4G-Outdoor v1', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.0.2 Build 20260723 Rel.43271', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'DR3150 v1', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.0.1 Build 20260722 Rel.16854', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'ER701-5G-Outdoor v1', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.0.3 Build 20260723 Rel.40931', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}, {'vendor': 'TP-Link Systems Inc.', 'product': 'ER605W v2', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.0.4 Build 20260723 Rel.43763', 'versionType': 'custom'}], 'defaultStatus': 'unaffected'}] 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. Added CVSS V4.0 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 Added CWE CWE-319 Added Reference https://www.omadanetworks.com/en/support/download/ Added Reference https://www.omadanetworks.com/us/support/download/ Added Reference https://www.tp-link.com/us/support/faq/5256/ -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 20, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-19683', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-20T18:55:44.295305Z'}