Vulnerability · Published Oct 1, 2026 · Assigned by TPLink

CVE-2026-78577Unauthenticated Onboarding Scan Information Disclosure in TP-Link Tapo C120 & C200

Medium 5.3

In plain English

A medium-severity missing authentication in Tapo C120 v1 from TP-Link Systems Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).

Severity (CVSS 4.0)5.3Medium

Exploit odds (30 days)0.2%top 94.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
TP-Link Systems Inc.	Tapo C200 v5	0 – before V5_1.4.6 Build 260709 Rel.27675n
TP-Link Systems Inc.	Tapo C120 v1	0 – before V1_1.9.4 Build 260813 Rel.79754n

Weakness: CWE-306 · Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

In plain English

Official description

Affected products (as reported)

References