CVE-2026-28522 arduino-TuyaOpen WiFiUDP Null Pointer Dereference Denial of Service
A local network attacker can cause a denial of service in Tuya IoT devices by sending malicious UDP packets to the WiFiUDP component.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-28522?
CVE-2026-28522 is a high-severity vulnerability in arduino-TuyaOpen, published on 15 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
arduino-TuyaOpen before version 1.2.1 contains a null pointer dereference vulnerability in the WiFiUDP component. An attacker on the same local area network can send a large volume of malicious UDP packets that trigger a null pointer dereference, resulting in a denial-of-service condition.
Weakness: CWE-476
Which versions are affected by CVE-2026-28522?
It affects 1 product.
Products include Tuya Arduino-Tuyaopen.
How do I fix CVE-2026-28522?
No fix has been published for CVE-2026-28522 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-28522 being exploited?
There is no known exploitation of CVE-2026-28522 in the wild and no public exploit code.
Other vulnerabilities in arduino-TuyaOpen
Sources
Also known as GHSA-5f8w-qvc2-2v3p.