CVE-2026-28522 HIGH

CVE-2026-28522: arduino-TuyaOpen WiFiUDP Null Pointer Dereference Denial of Service

Vendor Tuya
Product arduino-TuyaOpen
Weakness CWE-476
Published March 15, 2026
Last update May 26, 2026

CVSS base score

7.1/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 15, 2026 CVE published
May 26, 2026 Record updated