Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tuya | Arduino-Tuyaopen | < 1.2.1 |
Related Weaknesses (CWE)
References
- https://github.com/tuya/arduino-TuyaOpenProduct
- https://src.tuya.com/announcement/32Vendor Advisory
- https://www.vulncheck.com/advisories/arduino-tuyaopen-dnsserver-heap-based-buffeThird Party Advisory
FAQ
What is CVE-2026-28519?
CVE-2026-28519 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 sen...
How severe is CVE-2026-28519?
CVE-2026-28519 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-28519?
Check the references section above for vendor advisories and patch information. Affected products include: Tuya Arduino-Tuyaopen.