CVE-2026-1315
Unauthenticated Denial of Service via Firmware Update Endpoint on TP-Link Tapo C220 & C520WS
- State
- Published
- Severity
- 7.1 High
- Published
- Jan 27, 2026
- Updated
- Jan 27, 2026
- Reserved
- Jan 21, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 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 | TPLink |
Weaknesses
- CWE-20 Improper Input Validation
Affected Products
| Product | Versions |
|---|---|
Tapo C220 v1TP-Link Systems Inc. |
|
Tapo C520WS v2TP-Link Systems Inc. |
|
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
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