CVE-2026-78577 Unauthenticated Onboarding Scan Information Disclosure in TP-Link Tapo C120 & C200
Unauthenticated attackers on the local network can retrieve nearby wireless access-point metadata from TP-Link Tapo cameras due to missing authentication in the onboarding scan function.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-78577?
CVE-2026-78577 is a medium-severity missing authorization vulnerability in TP-Link Systems Inc. Tapo C120 v1, published on 1 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
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.
Weakness: CWE-306
Which versions are affected by CVE-2026-78577?
How do I fix CVE-2026-78577?
No fix has been published for CVE-2026-78577 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-78577 being exploited?
There is no known exploitation of CVE-2026-78577 in the wild and no public exploit code.
Sources
Also known as GHSA-7ch5-88j9-f3v7.