TI-2026-54630 Aliases CVE-2026-78578 GHSA-5hx8-fmw3-r64v

Missing authentication in TP-Link Tapo C200 v5

LOW 31CWE-306Published 2026-10-01 · Updated 2026-10-01

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00273 19th percentileScored 2026-11-08

Fix Fixed Tapo C200 v5 (TP-Link Systems Inc.): V5_1.4.6 Build 260709 Rel.27675nTapo C120 v1 (TP-Link Systems Inc.): V1_1.9.4 Build 260813 Rel.79754n

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
TP-Link	Tapo C200 v5	before V5_1.4.6 Build 260709 Rel.27675n	V5_1.4.6 Build 260709 Rel.27675n	Patch available	CNA
TP-Link	Tapo C120 v1	before V1_1.9.4 Build 260813 Rel.79754n	V1_1.9.4 Build 260813 Rel.79754n	Patch available	CNA

Tapo C200 v5 VendorTP-Link Affected before V5_1.4.6 Build 260709 Rel.27675n Fixed in V5_1.4.6 Build 260709 Rel.27675n Patch available CNA
Tapo C120 v1 VendorTP-Link Affected before V1_1.9.4 Build 260813 Rel.79754n Fixed in V1_1.9.4 Build 260813 Rel.79754n Patch available CNA

Remediation

Fix · CNA Tapo C200 v5 (TP-Link Systems Inc.) Fixed in V5_1.4.6 Build 260709 Rel.27675n
Fix · CNA Tapo C120 v1 (TP-Link Systems Inc.) Fixed in V1_1.9.4 Build 260813 Rel.79754n

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2026-10-01
TP-Link Systems Tapo C120 v1, Tapo C200 v5 — tp-link.com/us/support/faq/5321
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2026-65366 Unauthenticated Remote Code Execution via MacTool Command Injection in TP-Link Tapo C120 & C200Priority LOW 39
- TI-2026-07939 Unauthenticated Onboarding Connect NULL Pointer Dereference Denial of Service Vulnerability in TP-Link Tapo C120 & C200Priority LOW 30
- TI-2026-54629 Unauthenticated Onboarding Scan Information Disclosure in TP-Link Tapo C120 & C200Priority LOW 23
Show all 4 records → Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-78578
2026-10-03 Alias added: GHSA-5hx8-fmw3-r64v

References

Patch 4

Advisory 1

https://www.tp-link.com/us/support/faq/5321/

TI-2023-16571 TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain… KEVCVSS 3.1HIGH 8.8
TI-2023-01313 Command injection in TP-Link Archer AX21 KEVCVSS 3.1HIGH 8.8
TI-2020-14907 TP-Link TL-WA855RE V5 20200415-rel37464 devices allow an unauthenticated attacker (on the… KEVCVSS 3.1HIGH 8.8
TI-2025-08589 Authenticated RCE via Parental Control command injection KEVCVSS 4.0HIGH 8.6
TI-2015-02672 Directory traversal vulnerability in TP-LINK Archer C5 (1.2) with firmware before 150317… KEVCVSS 3.1HIGH 7.5
TI-2023-27456 Authentication bypass by spoofing in TP-Link TL-WR841N KEVCVSS 3.1MEDIUM 6.5

See all 636 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences