PT-2026-25553 · Tuya+1 · Arduino-Tuyaopen

Maxime Rossi Bellom · Published 2026-03-15 · Updated 2026-03-16 · CVE-2026-28522

Positive Technologies (AI Summary)

CVSS v4.0

7.1

High

Base vector

AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions arduino-TuyaOpen versions prior to 1.2.1

Description arduino-TuyaOpen before version 1.2.1 contains a null pointer dereference issue within the WiFiUDP component. An attacker on the same local area network can send a large volume of malicious UDP packets to cause memory exhaustion on the device. This can trigger a null pointer dereference, resulting in a denial-of-service condition.

Recommendations Versions prior to 1.2.1 should be updated to version 1.2.1 or later.

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-28522

Affected Products

Arduino-Tuyaopen

References · 7

• https://src.tuya.com/announcement/32 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-28522 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-28522 · Security Note
• https://github.com/tuya/arduino-TuyaOpen · Note
• https://twitter.com/CVEnew/status/2033194263593603127 · Twitter Post
• https://t.me/CVEtracker/47437 · Telegram Post
• https://vulncheck.com/advisories/arduino-tuyaopen-wifiudp-null-pointer-dereference-denial-of-service · Note