Vulnerability Intelligence Report
Unauthenticated do Method Onboarding Connect Allows Wi‑Fi Reconfiguration Denial of Service Vulnerability in TP-Link Tapo C120 & C200
CVE-2026-78578
Tapo C120 v1 and C200 v5 do not enforce authentication for do method 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. Successful exploitation disconnects the camera from its intended wireless network, making it unreachable on its management address, resulting in a denial-of-service condition.
No Active Exploit Signals
CVSS Base Score
7.1
HIGH
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-306 ↗CWE-306 Missing authentication for critical function
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| TP-Link Systems Inc. | Tapo C200 v5 | 0 < V5_1.4.6 Build 260709 Rel.27675n (affected) |
| TP-Link Systems Inc. | Tapo C120 v1 | 0 < V1_1.9.4 Build 260813 Rel.79754n (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | TP-Link Systems Inc. · Vendor · USA |
| Reserved | 2026-08-24T20:46:19 |
| Published | 2026-10-01T17:42:05 |
| Last Updated | 2026-10-01T18:08:30 |
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