Unauthenticated do Method Onboarding Connect Allows Wi‑Fi Reconfiguration Denial of Service Vulnerability in TP-Link Tapo C120 & C200
Tapo C120 v1 and C200 v5 do not enforce authentication for do method HTTPS onboarding connect actions after initial setup. An unauthenticated adjacent attacker can submit unauthorized wireless configuration parameters, causing the camera to attempt connection to a different network. Successful exploitation disconnects the camera from its intended wireless network, making it unreachable on its management address, resulting in a denial-of-service condition.
CVE-2026-78578
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-78578
Tapo C200 v5
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Tapo C120 v1
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "TP-Link Systems Inc.",
"product": "Tapo C200 v5",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "V5_1.4.6 Build 260709 Rel.27675n",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "TP-Link Systems Inc.",
"product": "Tapo C120 v1",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "V1_1.9.4 Build 260813 Rel.79754n",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-78578
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #7627 · Revision 1
- Added to Heist Feed
- Publisher date