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CVE-2026-28521 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.7 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/tuya/arduino-TuyaOpen	[email protected]	Product
https://src.tuya.com/announcement/32	[email protected]	Vendor Advisory
https://www.vulncheck.com/advisories/arduino-tuyaopen-tuyaiot-out-of-bounds-memory-read-information-disclosure	[email protected]	Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-125	Out-of-bounds Read	[email protected]

Affected Products

Product	Versions
tuya arduino-tuyaopen	< 1.2.1
CPE cpe:2.3:a:tuya:arduino-tuyaopen:::::::: Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Mar 17, 2026	Initial Analysis	[email protected]
Mar 16, 2026	New CVE Received	[email protected]