CVE-2026-19683
MediumCVSS 6.3Exploitation Probability (EPSS)
Low risk21th percentile - higher than 21% of all known CVEs
Summary
In the Dynamic DNS (DDNS) functionality of TP-Link Omada Gateways, authentication credentials are transmitted over an unencrypted channel during communication with a third-party DDNS service. 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.
Risk Assessment
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, potentially compromising system integrity and confidentiality.
Recommendation
It is recommended to configure encrypted communication (e.g., HTTPS) for DDNS traffic and monitor network traffic to detect unauthorized attempts to intercept data.
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Original NVD description (English source)
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.

