NULL pointer dereference in Tuya Arduino-Tuyaopen
CVE-2026-28522
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (24.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.001
Affected products
- Tuya Arduino-Tuyaopen — versions 0
Weakness classification (CWE)
References
- src.tuya.com/announcement/32 (vendor-advisory, Vendor Advisory)
- github.com/tuya/arduino-TuyaOpen (Product, product)
- www.vulncheck.com/advisories/arduino-tuyaopen-wifiudp-null-pointer-dereference-… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-28522?
- CVE-2026-28522 is a medium-severity vulnerability in Tuya Arduino-Tuyaopen, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2026-03-16.
- How severe is CVE-2026-28522?
- Medium severity. CVSS v3 base score is 6.5 out of 10.