CVE-2026-28520
arduino-TuyaOpen WiFiMulti Single-Byte Buffer Overflow Remote Code Execution
- State
- Published
- Severity
- 8.6 High
- Published
- Mar 15, 2026
- Updated
- Mar 16, 2026
- Reserved
- Feb 27, 2026
Description
arduino-TuyaOpen before version 1.2.1 contains a single-byte buffer overflow vulnerability in the WiFiMulti component. When the victim's smart hardware connects to an attacker-controlled AP hotspot, the attacker can exploit the overflow to execute arbitrary code on the affected embedded device.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.6 High | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 8.4 High | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-193 Off-by-one Error
Affected Products
| Product | Versions |
|---|---|
arduino-TuyaOpenTuya |
|
References
- Tuya SRC Security Advisoryvendor-advisory
- arduino-TuyaOpen GitHub Repositoryproduct
- VulnCheck Advisory: arduino-TuyaOpen WiFiMulti Single-Byte Buffer Overflow Remote Code Executionthird-party-advisory
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