Medium severity · published Oct 1, 2026
CVE-2026-78577
Unauthenticated Onboarding Scan Information Disclosure in TP-Link Tapo C120 & C200
5.3
CVSS
0.2%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TC
Tapo C120 v1 · TP-Link Systems Inc.
before V1_1.9.4 Build 260813 Rel.79754n · source: vendor
TC
Tapo C200 v5 · TP-Link Systems Inc.
before V5_1.4.6 Build 260709 Rel.27675n · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-78577
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-78577
patch
https://www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes
patch
https://www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes
patch
https://www.tp-link.com/us/support/download/tapo-c120/v1.26/#Firmware-Release-Notes
patch
https://www.tp-link.com/en/support/download/tapo-c120/v1.26/#Firmware-Release-Notes
vendor-advisory
https://www.tp-link.com/us/support/faq/5321/
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8.7
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7.1
CVE-2026-78578
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7.1
CVE-2026-9032
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