CVEvulnerability
CVE-2026-0918
7.1 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-01-27
- Last modified
- 2026-06-17
- Assigner
- f23511db-6c3e-4e32-a477-6aa17d310630
- CVSS 4.0 (f23511db-6c3e-4e32-a477-6aa17d310630)
- 7.1 HIGH — 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
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
Description
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.
Affected configurations
• tp-link tapo c220 firmware (< 1.4.2)
• tp-link tapo c520ws firmware (< 1.2.3)
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://www.crac-learning.com/post/smart-home-security-research-cve-2026-0918-assigned www.crac-learning.com
- https://www.tp-link.com/en/support/download/tapo-c220/v1/ Product
- https://www.tp-link.com/en/support/download/tapo-c520ws/v2/ Product
- https://www.tp-link.com/us/support/download/tapo-c100/v5/ Product
- https://www.tp-link.com/us/support/download/tapo-c220/v1.60/ Product
- https://www.tp-link.com/us/support/download/tapo-c520ws/v2/ Product
- https://www.tp-link.com/us/support/faq/4923/ Vendor Advisory