CVE-2026-0918 Null Pointer Dereference in Tapo SmartCam HTTP Service on TP-Link Tapo C220 & C520WS
Unauthenticated attackers can crash the HTTP service on TP-Link Tapo cameras via large Content-Length headers, causing temporary denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-0918?
CVE-2026-0918 is a high-severity vulnerability in TP-Link Systems Inc. Tapo C100 v5, published on 27 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-476
Which versions are affected by CVE-2026-0918?
It affects 2 products.
Products include Tp-Link Tapo C220 Firmware, Tp-Link Tapo C520ws Firmware.
How do I fix CVE-2026-0918?
No fix has been published for CVE-2026-0918 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-0918 being exploited?
There is no known exploitation of CVE-2026-0918 in the wild and no public exploit code.
Other vulnerabilities in TP-Link Systems Inc. Tapo C100 v5
Sources
Also known as GHSA-ffwx-rgqv-xv4m.