CVE-2026-9032 json
Unauthenticated Onboarding Connect NULL Pointer Dereference Denial of Service Vulnerability in TP-Link Tapo C120 & C200
published 2026-10-01 38 d ago modified 2026-10-06 33 d ago also EUVD-2026-90980
- cvss
- 7.1
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 4%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- TP-Link Systems Inc. Tapo C200 V5 V5_1.4.6 Build 260709 Rel.27675n
- TP-Link Systems Inc. Tapo C120 V1 V1_1.9.4 Build 260813 Rel.79754n
- tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes patch
- tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes patch
- tp-link.com/us/support/download/tapo-c120/v1.26/#Firmware-Release-Notes patch
- tp-link.com/en/support/download/tapo-c120/v1.26/#Firmware-Release-Notes patch
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 33 d ago
Exploit prediction
0.16% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 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 |
| CNA | 4.0 | 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/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 |
Affected products
- TP-Link Systems Inc. Tapo C200 V5
- TP-Link Systems Inc. Tapo C120 V1
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
References
-
tp-link.com
/us/support/download/tapo-c200/v5/#Firmware-Release-Notes
patch
-
tp-link.com
/en/support/download/tapo-c200/v5/#Firmware-Release-Notes
patch
-
tp-link.com
/us/support/download/tapo-c120/v1.26/#Firmware-Release-Notes
patch
-
tp-link.com
/en/support/download/tapo-c120/v1.26/#Firmware-Release-Notes
patch
-
tp-link.com
/us/support/faq/5321/
vendor-advisory
Sources
- CVE List CVE-2026-9032
- NVD CVE-2026-9032
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.