High severity8.8NVD Advisory· Published Mar 16, 2026· Updated Jun 17, 2026
CVE-2026-28519
CVE-2026-28519
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.
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Affected products
3cpe:2.3:a:tuya:arduino-tuyaopen:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:tuya:arduino-tuyaopen:*:*:*:*:*:*:*:*range: <1.2.1
- (no CPE)range: <1.2.1
- (no CPE)range: 0
Patches
Vulnerability mechanics
References
2- src.tuya.com/announcement/32nvdVendor Advisory
- www.vulncheck.com/advisories/arduino-tuyaopen-dnsserver-heap-based-buffer-overflow-remote-code-executionnvdThird Party Advisory
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