CVE-2026-9032
Unauthenticated Onboarding Connect NULL Pointer Dereference Denial of Service Vulnerability in TP-Link Tapo C120 & C200
- Published
- Updated
- Reserved
- Assigned by
- TPLink
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| TPLinkCNA (assigner) | 4.0 | High7.1 | 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 |
| NVDNVD · Deferred | 4.0 | High7.1 | 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/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 (6 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: High 7.1.
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-2026-9032)Record last updated .