CVE-2026-28520

arduino-TuyaOpen before version 1.2.1 contains a single-byte buffer overflow vulnerability in the WiFiMulti component. When the victim's smart hardware connects to an attacker-controlled AP hotspot, the attacker can exploit the overflow to execute arbitrary code on the affected embedded device.

CVSS v3 8.4 HIGH

8.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.5 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/tuya/arduino-TuyaOpen	Product
https://src.tuya.com/announcement/32	Vendor Advisory
https://www.vulncheck.com/advisories/arduino-tuyaopen-wifimulti-single-byte-buffer-overflow-remote-code-execution	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:tuya:arduino-tuyaopen:*:*:*:*:*:*:*:*

History

17 Mar 2026, 15:39

Type	Values Removed	Values Added
First Time		Tuya Tuya arduino-tuyaopen
CPE		cpe:2.3:a:tuya:arduino-tuyaopen::::::::
References	~~() https://github.com/tuya/arduino-TuyaOpen -~~	() https://github.com/tuya/arduino-TuyaOpen - Product
References	~~() https://src.tuya.com/announcement/32 -~~	() https://src.tuya.com/announcement/32 - Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/arduino-tuyaopen-wifimulti-single-byte-buffer-overflow-remote-code-execution -~~	() https://www.vulncheck.com/advisories/arduino-tuyaopen-wifimulti-single-byte-buffer-overflow-remote-code-execution - Third Party Advisory

16 Mar 2026, 14:19

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-16 14:19

Updated : 2026-03-17 15:39

NVD link : CVE-2026-28520

Mitre link : CVE-2026-28520

CVE.ORG link : CVE-2026-28520

JSON object : View

Products Affected

tuya

arduino-tuyaopen

CWE

CWE-193

Off-by-one Error

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