CVE-2026-78578CWE-306

CVE-2026-78578

published October 1, 2026

CVSS
7.1
EPSS
0%
Percentile
15.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
7.1 · NONE
CVSS v4.0
7.1 · CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00249 · 15.2th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-10-01T22:17Z
References (5)
EPSS history
Timeline
  • 03 OCT 03:46Z
    EPSS moved — → 0%
    epss
  • 01 OCT 17:42Z
    Unauthenticated do Method Onboarding Connect Allows Wi‑Fi Reconfiguration Denial of Service Vulnerability in TP-Link Tapo C120 & C200
    cvelistv5