CVE-2026-28519

HIGH

8.8

Description

arduino-TuyaOpen before version 1.2.1 contains a heap-based buffer overflow vulnerability in the DnsServer component. An attacker on the same local area network who controls the LAN DNS server can send malicious DNS responses to overflow the heap buffer, potentially allowing execution of arbitrary code on affected embedded devices.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

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

Attack VectorADJACENT_NETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/16/2026

Last Modified3/17/2026

Sourcenvd

Honeypot Sightings0

Affected Products

tuya:arduino-tuyaopen

Weaknesses (CWE)

CWE-122

References

https://github.com/tuya/arduino-TuyaOpen(disclosure@vulncheck.com)

https://src.tuya.com/announcement/32(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/arduino-tuyaopen-dnsserver-heap-based-buffer-overflow-remote-code-execution(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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