CVE-2026-0918
HIGHCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
2Description
The Tapo 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.
Analysis
Unauthenticated remote denial of service in TP-Link Tapo C220 and C520WS network cameras allows attackers to crash the HTTP service by sending POST requests with malformed Content-Length headers, triggering a null pointer dereference. Repeated attacks can keep the devices offline despite automatic restarts, with no available patch to mitigate the vulnerability. …
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Remediation
Within 24 hours: Inventory all Tapo C220 v1 and C520WS v2 cameras in your environment and isolate them to a restricted network segment. Within 7 days: Implement network-level compensating controls (WAF rules blocking oversized POST requests, rate limiting on camera HTTP ports). …
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