CVE-2026-28520 - Vulnerability Analysis

Overview

arduino-TuyaOpen < 1.2.1 contains a buffer overflow caused by improper handling in the WiFiMulti component, letting attackers execute arbitrary code when the device connects to a malicious AP hotspot.

Severity & Score

Impact

Attackers can execute arbitrary code on the embedded device, potentially taking full control.

Mitigation

Upgrade to version 1.2.1 or later.

References

• https://github.com/tuya/arduino-TuyaOpen
• https://src.tuya.com/announcement/32
• https://www.vulncheck.com/advisories/arduino-tuyaopen-wifimulti-single-byte-buffer-overflow-remote-code-execution

Social Media Activity(1 post)

TheHackerWire

@thehackerwire

Mar 16, 2026

🟠 CVE-2026-28520 - High (8.4) 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... 🔗 https://www.thehackerwire.com/vulnerability/CVE-2026-28520/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

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