CVE-2026-78577
Unauthenticated Onboarding Scan Information Disclosure in TP-Link Tapo C120 & C200
- Published
- Updated
- Reserved
- Assigned by
- TPLink
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.
Timeline
ID reserved
By TPLink
- 38 days later
· 38 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| TPLinkCNA (assigner) | 4.0 | Medium5.3 | 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 |
| NVDNVD · Deferred | 4.0 | Medium5.3 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 0.16% · top 95% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
TP-Link Systems Inc. · Tapo C200 v5
- affected < V5_1.4.6 Build 260709 Rel.27675n
TP-Link Systems Inc. · Tapo C120 v1
- affected < V1_1.9.4 Build 260813 Rel.79754n
References (5)
- https://www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes (opens in a new tab)patch
- https://www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes (opens in a new tab)patch
- https://www.tp-link.com/us/support/download/tapo-c120/v1.26/#Firmware-Release-Notes (opens in a new tab)patch
- https://www.tp-link.com/en/support/download/tapo-c120/v1.26/#Firmware-Release-Notes (opens in a new tab)patch
- https://www.tp-link.com/us/support/faq/5321/ (opens in a new tab)vendor-advisory
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-78577)Record last updated .