CVE-2025-14300: Unauthenticated Access to connectAP API Endpoint on Tapo C100, C200 & C425

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-20 · updated 2026-09-30
Weakness: CWE-306

Description

The HTTPS service on Tapo C200 v3, v5, C425 v1.2 and C100 v5 exposes a connectAP interface without proper authentication. An unauthenticated attacker on the same local network segment can exploit this to modify the device’s Wi-Fi configuration, resulting in loss of connectivity and denial-of-service (DoS).

Affected products

TP-Link Systems Inc. Tapo C200 v5: 1.3.3-build_230228, 1.3.4-build_230424, 1.3.5-build_230717, 1.3.7-build_230920, 1.3.9-build_231019, 1.3.11-build_231115 (+6)

References

https://www.tp-link.com/en/support/download/tapo-c100/v5/#Firmware-Release-Notes
https://www.tp-link.com/en/support/download/tapo-c200/v3/#Firmware-Release-Notes
https://www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes
https://www.tp-link.com/en/support/download/tapo-c425/v1.20/#Firmware-Release-Notes
https://www.tp-link.com/us/support/download/tapo-c100/v5/#Firmware-Release-Notes
https://www.tp-link.com/us/support/download/tapo-c200/v3/#Firmware-Release-Notes
https://www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes
https://www.tp-link.com/us/support/download/tapo-c425/v1.20/#Firmware-Release-Notes
https://www.tp-link.com/us/support/faq/4849/

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