CVE-2026-15316

Medium

Description

An improper input validation vulnerability in the configuration service for processing encrypted credential data has been identified in Tapo C200 v5. An attacker can send oversized crypted ciphertext values that may trigger exception handling failures, due to insufficient validation, causing the affected device to crash or restart. Successful exploitation may temporarily disrupt HTTPS management and monitoring functionality, resulting in a denial-of-service (DoS) condition until the service recovers.

SeverityMedium

CVSS6.5

Exploit probability—

Product

Tp-link Tapo C200 Firmware

PublishedAug 18, 2026

First seenAug 18, 2026

Weakness typeCWE-20Improper input validation

How to fix

Update

tp-link tapo_c200_firmware1.4.6 or later

Patches

Vendor advisories

tp-link.com/us/support/faq/5248/

Affected products

Product	Affected versions	Fixed in
tp-link tapo_c200_firmware	v < 1.4.6	1.4.6

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