Is CVE-2026-78577 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-78577 being exploited in the wild.

How severe is CVE-2026-78577?

Informational severity, published 1 October 2026.

Which products and versions are affected?

TP-Link Tapo C120 v1; TP-Link Tapo C200 V5.

Is there a fix for CVE-2026-78577?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-78577 attacked?

It is attacked over the network or from the adjacent network, in a network appliance.

Am I affected by CVE-2026-78577?

Check whether you run TP-Link Tapo C120 or TP-Link Tapo C200 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-78577: TP-Link Tapo C120 v1 and C200 V5 authentication bypass in onboarding scan

CVE-2026-78577 · Severity: info · Published 2026-10-01

TP-Link Tapo C120 and C200 are smart home security cameras. An attacker on the same local network can bypass authentication checks during device setup to scan nearby Wi-Fi networks and extract sensitive wireless access-point details such as network names, hardware identifiers, security modes, and signal strength. This information could help an attacker map the local wireless environment and identify targets for further compromise.

Technologies: TP-Link Tapo C120, TP-Link Tapo C200. Vendors: TP-Link.

Quick answers

Is CVE-2026-78577 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-78577 being exploited in the wild.
How severe is CVE-2026-78577?: Informational severity, published 1 October 2026.
Which products and versions are affected?: TP-Link Tapo C120 v1; TP-Link Tapo C200 V5.
Is there a fix for CVE-2026-78577?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-78577 attacked?: It is attacked over the network or from the adjacent network, in a network appliance.
Am I affected by CVE-2026-78577?: Check whether you run TP-Link Tapo C120 or TP-Link Tapo C200 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The HTTPS onboarding scan function in Tapo C120 v1 and C200 V5 fails to verify authentication before allowing the scan action, enabling unauthenticated local network access. An attacker with network adjacency can invoke the scan to retrieve nearby wireless access-point metadata including SSIDs, BSSIDs, authentication and encryption modes, and signal strength. The vulnerability discloses information about the local wireless topology but does not directly compromise camera or network confidentiality beyond reconnaissance.

Affected products

TP-Link Tapo C120 v1
TP-Link Tapo C200 V5

Timeline

2026-10-01: disclosed

References

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