Vulnerability · Published Mar 15, 2026 · Assigned by VulnCheck
CVE-2026-28521arduino-TuyaOpen TuyaIoT Out-of-Bounds Memory Read Information Disclosure
High 7.7
In plain English
A high-severity out-of-bounds read in arduino-TuyaOpen from Tuya. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).
Severity (CVSS 3.1)7.7High
Exploit odds (30 days)0.2%top 86.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Tuya | arduino-TuyaOpen | 0 – before 1.2.1 |
Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
References
- Tuya SRC Security Advisory vendor-advisory
- arduino-TuyaOpen GitHub Repository product
- VulnCheck Advisory: arduino-TuyaOpen TuyaIoT Out-of-Bounds Memory Read Information Disclosure third-party-advisory