CVE-2026-9032

Unauthenticated Onboarding Connect NULL Pointer Dereference Denial of Service Vulnerability in TP-Link Tapo C120 & C200

Published Oct 1, 2026 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Description
Tapo C120 v1 and C200 v5
contain a NULL pointer dereference in the HTTPS onboarding connect request parser.  The interface is reachable without
authentication after initial setup and does not validate that a password field
is present for certain authentication and encryption parameter combinations,
allowing a malformed request from the same local network to crash the HTTPS service










 Successful exploitation may
temporarily make HTTPS management functions unavailable. Repeated malformed
requests may sustain the denial-of-service condition, and recovery may in some
cases require a device reboot.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Tp-link
Tp-link tapo C120 V1
Tp-link tapo C200 V5
Vendors & Products Tp-link
Tp-link tapo C120 V1
Tp-link tapo C200 V5
Type Values Removed Values Added
Description Tapo C120 v1 and C200 v5 contain a NULL pointer dereference in the HTTPS onboarding connect request parser.  The interface is reachable without authentication after initial setup and does not validate that a password field is present for certain authentication and encryption parameter combinations, allowing a malformed request from the same local network to crash the HTTPS service  Successful exploitation may temporarily make HTTPS management functions unavailable. Repeated malformed requests may sustain the denial-of-service condition, and recovery may in some cases require a device reboot.
Title Unauthenticated Onboarding Connect NULL Pointer Dereference Denial of Service Vulnerability in TP-Link Tapo C120 & C200
Weaknesses CWE-476
References
Metrics cvssV4_0

{'score': 7.1, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TPLink
Published
Updated
Oct 6, 2026, 6:02 PM
Reserved
May 19, 2026, 4:30 PM
Status
Deferred
Published
Oct 1, 2026, 6:17 PM
Modified
Oct 6, 2026, 7:18 PM