NULL pointer dereference in TP-Link Tapo C220
CVE-2026-0918
The Tapo C100 v5, C220 v1 and C520WS v2 cameras’ HTTP service does not safely handle POST requests containing an excessively large Content-Length header. The resulting failed memory allocation triggers a NULL pointer dereference, causing the main service process to crash. An unauthenticated attacker can repeatedly crash the service, causing temporary denial of service. The device restarts automatically, and repeated requests can keep it unavailable.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.007 (53.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.001
Affected products
- TP-Link Tapo C220 — versions 1
- TP-Link Tapo C220 Firmware
- TP-Link Tapo C520ws — versions 2
- TP-Link Tapo C520ws Firmware
- TP-Link Systems Inc. Tapo C100 V5 — versions 0
- TP-Link Systems Inc. Tapo C220 V1 — versions 0
- TP-Link Systems Inc. Tapo C520ws V2 — versions 0
Weakness classification (CWE)
References
- f23511db-6c3e-4e32-a477-6aa17d310630 (Product, patch)
- f23511db-6c3e-4e32-a477-6aa17d310630 (Product, patch)
- f23511db-6c3e-4e32-a477-6aa17d310630 (Product, patch)
- f23511db-6c3e-4e32-a477-6aa17d310630 (Product, patch)
- f23511db-6c3e-4e32-a477-6aa17d310630 (vendor-advisory, Vendor Advisory)
- f23511db-6c3e-4e32-a477-6aa17d310630 (Product, patch)
- f23511db-6c3e-4e32-a477-6aa17d310630 (third-party-advisory)
Frequently asked questions
- What is CVE-2026-0918?
- CVE-2026-0918 is a high-severity vulnerability in TP-Link Tapo C220, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-01-27.
- How severe is CVE-2026-0918?
- High severity. CVSS v3 base score is 7.5 out of 10.