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High · 7.1 CVE-2025-14299 EUVD-2025-204620GHSA-7cw2-wjj4-46p6

Improper Content-Length Validation in HTTPS Requests on Tapo C200

Published Dec 20, 2025 · Updated Dec 22, 2025 · Assigned by TPLink

Description

The HTTPS server on Tapo C200 V3 does not properly validate the Content-Length header, which can lead to an integer overflow. An unauthenticated attacker on the same local network segment can send crafted HTTPS requests to trigger excessive memory allocation, causing the device to crash and resulting in denial-of-service (DoS).

Affected products

VendorProductAffectedFixed
TP-Link Systems Tapo C200 V3 < C200(US)_V3_1.4.5 Build 251104 C200(US)_V3_1.4.5 Build 251104

References