CVE-2026-28522— arduino-TuyaOpen WiFiUDP Null Pointer Dereference Denial of Service
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I. Basic Information for CVE-2026-28522
Vulnerability Information
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Vulnerability Title
arduino-TuyaOpen WiFiUDP Null Pointer Dereference Denial of Service
Source: NVD (National Vulnerability Database)
Vulnerability 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 to cause memory exhaustion on the device, triggering a null pointer dereference and resulting in a denial-of-service condition.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
空指针解引用
Source: NVD (National Vulnerability Database)
Vulnerability Title
arduino-TuyaOpen 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
arduino-TuyaOpen是Tuya开源的一个基于Arduino的物联网开发框架。 arduino-TuyaOpen 1.2.1之前版本存在代码问题漏洞，该漏洞源于WiFiUDP组件存在空指针取消引用，可能导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Tuya | arduino-TuyaOpen | 0 ~ 1.2.1 | - |
II. Public POCs for CVE-2026-28522
| # | POC Description | Source Link | Shenlong Link |
|---|
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- Tuya SRCvendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-28522
Same Patch Batch · Tuya · 2026-03-15 · 4 CVEs total
| CVE-2026-28519 | 8.8 HIGH | arduino-TuyaOpen DnsServer Heap-Based Buffer Overflow Remote Code Execution |
| CVE-2026-28520 | 8.4 HIGH | arduino-TuyaOpen WiFiMulti Single-Byte Buffer Overflow Remote Code Execution |
| CVE-2026-28521 | 7.7 HIGH | arduino-TuyaOpen TuyaIoT Out-of-Bounds Memory Read Information Disclosure |
IV. Related Vulnerabilities
Same vendor: Tuya
- CVE-2026-28519
arduino-TuyaOpen DnsServer Heap-Based Buffer Overflow Remote - CVE-2026-28521
arduino-TuyaOpen TuyaIoT Out-of-Bounds Memory Read Informati - CVE-2026-28520
arduino-TuyaOpen WiFiMulti Single-Byte Buffer Overflow Remot - CVE-2026-3465
Tuya App/SDK JSON Data Point denial of service - CVE-2024-3764
Tuya SDK MQTT Packet denial of service
Same weakness: CWE-476
- CVE-2026-8252
Open5GS SMF smf_nsmf_handle_create_data_in_hsmf null pointer - CVE-2026-7259
Null pointer dereference in php_mb_check_encoding() via mb_e - CVE-2026-7262
NULL pointer dereference in SOAP apache:Map decoder with mis - CVE-2026-42183
Argo Workflows: SSO RBAC Delegation Nil Pointer Dereference - CVE-2026-6666
PgBouncer crash in kill_pool_logins_server_error
V. Comments for CVE-2026-28522
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