Vulnerability 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.
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-tuyaiot-out-of-bounds-memoThird Party Advisory
FAQ
What is CVE-2026-28521?
CVE-2026-28521 is a vulnerability with a CVSS score of 7.7 (HIGH). 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 ev...
How severe is CVE-2026-28521?
CVE-2026-28521 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-28521?
Check the references section above for vendor advisories and patch information. Affected products include: Tuya Arduino-Tuyaopen.