CVE-2026-28521

HIGH

arduino-TuyaOpen TuyaIoT Out-of-Bounds Memory Read Information Disclosure

Title source: cna
STIX 2.1

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.

References (3)

Core 3
Core References
Vendor Advisory vendor-advisory
Tuya SRC Security Advisory
https://src.tuya.com/announcement/32
Product product
arduino-TuyaOpen GitHub Repository
https://github.com/tuya/arduino-TuyaOpen
Third Party Advisory third-party-advisory
VulnCheck Advisory: arduino-TuyaOpen TuyaIoT Out-of-Bounds Memory Read Information Disclosure
https://www.vulncheck.com/advisories/arduino-tuyaopen-tuyaiot-out-of-bounds-memory-read-information-disclosure

Scores

CVSS v3 7.7
EPSS 0.0021
EPSS Percentile 11.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-125
Status published
Products (2)
Tuya/arduino-TuyaOpen < 1.2.1
tuya/arduino-tuyaopen < 1.2.1
Published Mar 16, 2026
Tracked Since Mar 16, 2026