CVE-2026-28522

7.1 highEPSS 0.3%

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.

Severity

CVSS 4.0

7.1 high

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

CVSS 3.1

6.5 medium

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 20% of CVEs (scores of 2026-10-31)
CWE: CWE-476
Published: 2026-03-16
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tuya:arduino-tuyaopen

References

https://github.com/tuya/arduino-TuyaOpen
https://src.tuya.com/announcement/32
https://www.vulncheck.com/advisories/arduino-tuyaopen-wifiudp-null-pointer-dereference-denial-of-service

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