CVE-2026-78577
MediumCVSS 5.3Summary
Tapo C120 v1 and C200 V5 contain a vulnerability in the HTTPS onboarding scan function due to missing authentication. After initial setup, an unauthenticated attacker on the same local network can invoke the scan action and retrieve nearby wireless access-point metadata, including SSIDs, BSSIDs, authentication and encryption modes, and signal-strength information.
Risk Assessment
An attacker can obtain information about the wireless environment around the camera, which may help in planning further attacks on the network or devices.
Recommendation
Update the Tapo camera firmware to the latest version that fixes this vulnerability, and limit trust in devices on the local network.
Other vulnerabilities in Tapo C120/C200
See all- CVE-2026-9032High
Tapo C120 v1 and C200 v5 cameras have a NULL pointer dereference vulnerability in the HTTPS onboarding connect request parser. The interface is reachable without authentication after initial setup and does not validate the presence of a password field for certain parameter combinations, allowing a malformed request from the local network to crash the HTTPS service.
- CVE-2026-78578High
Tapo C120 v1 and C200 v5 cameras do not enforce authentication for HTTPS onboarding connect actions after initial setup. An unauthenticated adjacent attacker can submit unauthorized wireless configuration parameters, causing the camera to attempt connection to a different network.
- CVE-2026-15315High
Tapo C120 v1 and C200 v5 cameras contain an improper authentication vulnerability in 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. This may allow privileged management actions, unauthorized administrative access, and temporary disruption of device services (DoS).
Original NVD description (English source)
Tapo C120 v1 and C200 V5 contain a vulnerability in the HTTPS onboarding scan function due to missing authentication. After initial setup, an unauthenticated attacker on the same local network can invoke the scan action and retrieve nearby wireless access-point metadata, including SSIDs, BSSIDs, authentication and encryption modes, and signal-strength information. Successful exploitation may disclose information about the wireless environment surrounding the camera, allowing an attacker to learn elements of the local wireless topology.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS