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: tapo c200 firmware; tp-link: tapo c200
References9
- www.tp-link.com/us/support/faq/4849/ Vendor Advisory
- www.tp-link.com/en/support/download/tapo-c100/v5/#Firmware-Rele…
- www.tp-link.com/en/support/download/tapo-c200/v3/#Firmware-Rele…
- www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Rele…
- www.tp-link.com/en/support/download/tapo-c425/v1.20/#Firmware-R…
- www.tp-link.com/us/support/download/tapo-c100/v5/#Firmware-Rele…
- www.tp-link.com/us/support/download/tapo-c200/v3/#Firmware-Rele… Release Notes
- www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Rele…
- www.tp-link.com/us/support/download/tapo-c425/v1.20/#Firmware-R…
Metrics
- CVSS 3.1
-
8.1
HIGH
Score source: NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H - CVSS 4.0
-
8.7
HIGH
Score source: CNA
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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 - EPSS — exploit probability
- 0% percentile: 31 · as of 11 November 2026
- CWE
- CWE-306
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.