Firmware Update Vulnerability in Tapo C220 and C520WS Devices by TP-Link
CVE-2026-1315

7.1HIGH

Key Information:

Vendor

Tp-link Systems Inc.

Status
Tapo C220 V1
Tapo C520ws V2
Vendor
CVE Published:
27 January 2026

What is CVE-2026-1315?

A vulnerability exists in the firmware update endpoint of TP-Link Tapo C220 v1 and C520WS v2 devices that allows attackers to send specially crafted files. This can lead to premature termination of core system services without proper authentication or verification of firmware integrity. As a result, an unauthenticated attacker can initiate a persistent denial of service situation, which necessitates a manual reboot or application-initiated restart to restore the normal operation of the device.

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Deploy the Patch

Affected Version(s)

Tapo C220 v1 0 < 1.4.2 Build 251112

Tapo C520WS v2 0 < 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

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Diogo Almeida @NeWbie
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