CVE-2026-19683
highpriority · track · 30OT risk · elevatedEPSS 0.003 · 28 %ileUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 1.7–7.4
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (19)
Products and version ranges known to be affected.
- tp-link er603wp-4g-outdoor firmware< 1.0.2nvdUScpe:2.3:o:tp-link:er603wp-4g-outdoor_firmware:*:*:*:*:*:*:*:*
- tp-link er701-5g-outdoor firmware< 1.0.3nvdUScpe:2.3:o:tp-link:er701-5g-outdoor_firmware:*:*:*:*:*:*:*:*
- tp-link er703wp-4g-outdoor firmware< 1.1.7nvdUScpe:2.3:o:tp-link:er703wp-4g-outdoor_firmware:*:*:*:*:*:*:*:*
sources
Which sources assert this record, and when.
references (3) nvd
External citations — patches, advisories, analysis.
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