Home

Description

arduino-TuyaOpen before version 1.2.1 contains an out-of-bounds memory read vulnerability in the TuyaIoT component. An attacker who hijacks or controls the Tuya cloud service can issue malicious DP event data to victim devices, causing out-of-bounds memory access that may result in information disclosure or a denial-of-service condition.

PUBLISHED Reserved 2026-02-27 | Published 2026-03-15 | Updated 2026-03-16 | Assigner VulnCheck




HIGH: 7.0CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
HIGH: 7.7CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Problem types

Out-of-bounds Read

Product status

Any version before 1.2.1
affected

Credits

Maxime ROSSI BELLOM finder

References

src.tuya.com/announcement/32 (Tuya SRC Security Advisory) vendor-advisory

github.com/tuya/arduino-TuyaOpen (arduino-TuyaOpen GitHub Repository) product

www.vulncheck.com/...unds-memory-read-information-disclosure (VulnCheck Advisory: arduino-TuyaOpen TuyaIoT Out-of-Bounds Memory Read Information Disclosure) third-party-advisory

cve.org (CVE-2026-28521)

nvd.nist.gov (CVE-2026-28521)

Download JSON