CVE-2026-34118 in Tapo C520WS

Sumário (Inglês)

A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 in the HTTP POST body parsing logic due to missing validation of remaining buffer capacity after dynamic allocation, due to insufficient boundary validation when handling externally supplied HTTP input.  An attacker
on the same network segment could trigger heap memory corruption conditions by
sending crafted payloads that cause write operations beyond allocated buffer
boundaries.  Successful exploitation
causes a Denial-of-Service (DoS) condition, causing the device’s process to
crash or become unresponsive.

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Responsável

TPLink

Reservar

25/03/2026

Divulgação

02/04/2026

Estado

Confirmado

Inscrições

VulDB provides additional information and datapoints for this CVE:

ID	Vulnerabilidade	CWE	Exp	Con	CVE
354959	TP-Link Tapo C520WS Excesso de tampão	122	Não definido	Não definido	CVE-2026-34118

Fontes

• MITRE
• NVD
• CVE Details