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I. Basic Information for CVE-2026-28521
Vulnerability Information

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Vulnerability Title
arduino-TuyaOpen TuyaIoT Out-of-Bounds Memory Read Information Disclosure
Source: NVD (National Vulnerability Database)
Vulnerability Description
arduino-TuyaOpen before version 1.2.1 contains an out-of-bounds memory read vulnerability in the TuyaIoT component. An attacker who hijacks or controls the Tuya cloud service can issue malicious DP event data to victim devices, causing out-of-bounds memory access that may result in information disclosure or a denial-of-service condition.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
Source: NVD (National Vulnerability Database)
Vulnerability Title
arduino-TuyaOpen 缓冲区错误漏洞
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之前版本存在缓冲区错误漏洞,该漏洞源于TuyaIoT组件存在越界内存读取,可能导致信息泄露或拒绝服务。
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
VendorProductAffected VersionsCPESubscribe
Tuyaarduino-TuyaOpen 0 ~ 1.2.1 -
II. Public POCs for CVE-2026-28521
#POC DescriptionSource LinkShenlong Link
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kimi-k2.5 · 10003 chars
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III. Intelligence Information for CVE-2026-28521
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IV. Related Vulnerabilities
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