CVE-2026-28522

Medium

Description

arduino-TuyaOpen before version 1.2.1 contains a null pointer dereference vulnerability in the WiFiUDP component. An attacker on the same local area network can send a large volume of malicious UDP packets that trigger a null pointer dereference, resulting in a denial-of-service condition.

SeverityMedium

CVSS6.5

Exploit probability—

ProductArduino-tuyaopen

PublishedMar 16, 2026

First seenMar 16, 2026

Weakness typeCWE-476NULL pointer dereference

How to fix

Update

tuya arduino-tuyaopen1.2.1 or later

Vendor advisories

src.tuya.com/announcement/32

Affected products

Product	Affected versions	Fixed in
tuya arduino-tuyaopen	v < 1.2.1	1.2.1

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