CVE-2026-15315
Tapo C120 v1 and C200 v5 contain an improper authentication vulnerability within the login authentication verification module.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.30%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Tapo C120 v1 and C200 v5 contain an improper authentication vulnerability within the login authentication verification module. An attacker on the local network can exploit weaknesses in challenge parameter validation to bypass normal authentication controls and obtain administrative session tokens. Successful exploitation may allow an attacker to subsequently execute privileged management actions, enable unauthorized administrative access and temporary disruption of device services, resulting in a denial-of-service (DoS) condition.
- CVSS 4.0
- 8.7 HIGHCVSS: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/M
- EPSS
- 0.30% probability · 22th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- tp-link/tapo c120 firmware · tp-link/tapo c200 firmware
- Source
- f23511db-6c3e-4e32-a477-6aa17d310630
References
- https://www.tp-link.com/en/support/download/tapo-c120/v1.26/#Firmware-Release-NotesRelease Notes, Product
- https://www.tp-link.com/en/support/download/tapo-c200/v5/Product, Release Notes
- https://www.tp-link.com/us/support/download/tapo-c120/v1.26/#Firmware-Release-NotesRelease Notes, Product
- https://www.tp-link.com/us/support/download/tapo-c200/v5/Product, Release Notes
- https://www.tp-link.com/us/support/faq/5248/Vendor Advisory, Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.