Description
By sending crafted files to the firmware update endpoint of Tapo C220 v1 and C520WS v2, the device terminates core system services before verifying authentication or firmware integrity. An unauthenticated attacker can trigger a persistent denial of service, requiring a manual reboot or application initiated restart to restore normal device operation.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| TP-Link Systems | Tapo C220 v1 | < 1.4.2 Build 251112 | 1.4.2 Build 251112 |
| TP-Link Systems | Tapo C520WS v2 | < 1.2.3 Build 251114 | 1.2.3 Build 251114 |
References
- https://www.tp-link.com/us/support/download/tapo-c220/v1.60/ patch
- https://www.tp-link.com/en/support/download/tapo-c220/v1/ patch
- https://www.tp-link.com/us/support/download/tapo-c520ws/v2/ patch
- https://www.tp-link.com/en/support/download/tapo-c520ws/v2/ patch
- https://www.tp-link.com/us/support/faq/4923/ vendor-advisory