CVE-2026-15316: TP-Link Tapo c200 Firmware

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• TP-Link Tapo c200 Firmware: before 1.4.6 (fixed in 1.4.6)

Published 2026-08-18. Last modified 2026-09-04.