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CVE-2026-8714: Denial-of-Service Vulnerability in RTSP Input Handling on TP-Link's Tapo C520WS

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-05 · updated 2026-10-26
• Weakness: CWE-20

Description

A denial-of-service vulnerability exists in the RTSP server component of TP-Link Tapo C520WS v2 due to improper handling of syntactically invalid input.  Crafted inputs can trigger a processing error, causing the RTSP service to enter non-responsive state. Successful exploitation may cause the RTSP in a denial-of-service condition.

Affected products

• TP-Link Systems Inc. Tapo C520WS v2: before 1.2.6 — fixed in 1.2.6

How to fix

Upgrade to a fixed version: TP-Link Systems Inc. Tapo C520WS v2 1.2.6. Check the vendor advisory for mitigations.

References

• https://www.tp-link.com/en/support/download/tapo-c520ws/v2/#Firmware-Release-Notes
• https://www.tp-link.com/us/support/download/tapo-c520ws/v2/#Firmware-Release-Notes
• https://www.tp-link.com/us/support/faq/5118/

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