CVE-2026-0918
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Tp-link Tapo C220 Firmware
PublishedJan 27, 2026
First seenJan 27, 2026
Weakness typeCWE-476NULL pointer dereference
How to fix
Update
- tp-link tapo_c220_firmware1.4.2 or later
- tp-link tapo_c520ws_firmware1.2.3 or later
Patches
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| tp-link tapo_c220_firmware | v < 1.4.2 | 1.4.2 |
| tp-link tapo_c520ws_firmware | v < 1.2.3 | 1.2.3 |
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